Ur/Web: src/c/urweb.c annotate

annotate src/c/urweb.c @ 1105:a5c160636832

Protect against NULL applications in a few places

author	Adam Chlipala <adamc@hcoop.net>
date	Thu, 31 Dec 2009 15:14:24 -0500
parents	72670131dace
children	631a3597c065

rev	line source
adamc@1094	1 #define _XOPEN_SOURCE 600
adamc@436	2
adamc@117	3 #include <stdlib.h>
adamc@102	4 #include <stdio.h>
adamc@117	5 #include <string.h>
adamc@457	6 #include <strings.h>
adamc@106	7 #include <ctype.h>
adamc@167	8 #include <setjmp.h>
adamc@167	9 #include <stdarg.h>
adamc@682	10 #include <assert.h>
adamc@741	11 #include <ctype.h>
adamc@1094	12 #include <sys/types.h>
adamc@1094	13 #include <sys/socket.h>
adamc@102	14
adamc@667	15 #include <pthread.h>
adamc@667	16
adamc@102	17 #include "types.h"
adamc@102	18
adamc@311	19 uw_unit uw_unit_v = {};
adamc@102	20
adamc@667	21
adamc@667	22 // Socket extras
adamc@667	23
adamc@863	24 int uw_really_send(int sock, const void *buf, ssize_t len) {
adamc@667	25 while (len > 0) {
adamc@856	26 ssize_t n = send(sock, buf, len, 0);
adamc@856	27
adamc@856	28 if (n < 0)
adamc@856	29 return n;
adamc@856	30
adamc@856	31 buf += n;
adamc@856	32 len -= n;
adamc@856	33 }
adamc@856	34
adamc@856	35 return 0;
adamc@856	36 }
adamc@856	37
adamc@856	38 int uw_really_write(int fd, const void *buf, size_t len) {
adamc@856	39 while (len > 0) {
adamc@856	40 ssize_t n = write(fd, buf, len);
adamc@667	41
adamc@667	42 if (n < 0)
adamc@667	43 return n;
adamc@667	44
adamc@667	45 buf += n;
adamc@667	46 len -= n;
adamc@667	47 }
adamc@667	48
adamc@667	49 return 0;
adamc@667	50 }
adamc@667	51
adamc@667	52
adamc@667	53 // Buffers
adamc@667	54
adamc@667	55 typedef struct {
adamc@667	56 char start, front, *back;
adamc@667	57 } buf;
adamc@667	58
adamc@667	59 static void buf_init(buf *b, size_t s) {
adamc@667	60 b->front = b->start = malloc(s);
adamc@667	61 b->back = b->front + s;
adamc@667	62 }
adamc@667	63
adamc@667	64 static void buf_free(buf *b) {
adamc@667	65 free(b->start);
adamc@667	66 }
adamc@667	67
adamc@667	68 static void buf_reset(buf *b) {
adamc@667	69 b->front = b->start;
adamc@667	70 }
adamc@667	71
adamc@667	72 static void buf_check(buf *b, size_t extra) {
adamc@667	73 if (b->back - b->front < extra) {
adamc@667	74 size_t desired = b->front - b->start + extra, next;
adamc@667	75 char *new_heap;
adamc@667	76
adamc@667	77 next = b->back - b->start;
adamc@667	78 if (next == 0)
adamc@667	79 next = 1;
adamc@667	80 for (; next < desired; next *= 2);
adamc@667	81
adamc@667	82 new_heap = realloc(b->start, next);
adamc@667	83 b->front = new_heap + (b->front - b->start);
adamc@667	84 b->back = new_heap + next;
adamc@667	85 b->start = new_heap;
adamc@667	86 }
adamc@667	87 }
adamc@667	88
adamc@667	89 static size_t buf_used(buf *b) {
adamc@667	90 return b->front - b->start;
adamc@667	91 }
adamc@667	92
adamc@667	93 static size_t buf_avail(buf *b) {
adamc@667	94 return b->back - b->start;
adamc@667	95 }
adamc@667	96
adamc@668	97 static void buf_append(buf b, const char s, size_t len) {
adamc@672	98 buf_check(b, len+1);
adamc@668	99 memcpy(b->front, s, len);
adamc@668	100 b->front += len;
adamc@672	101 *b->front = 0;
adamc@668	102 }
adamc@667	103
adamc@668	104
adamc@672	105 // Persistent state types
adamc@667	106
adamc@667	107 typedef enum { UNUSED, USED } usage;
adamc@667	108
adamc@667	109 typedef struct client {
adamc@682	110 unsigned id;
adamc@667	111 usage mode;
adamc@682	112 int pass;
adamc@682	113 struct client *next;
adamc@689	114 pthread_mutex_t lock, pull_lock;
adamc@682	115 buf msgs;
adamc@682	116 int sock;
adamc@863	117 int (send)(int sockfd, const void buf, ssize_t len);
adamc@863	118 int (*close)(int fd);
adamc@682	119 time_t last_contact;
adamc@682	120 unsigned n_channels;
adamc@685	121 unsigned refcount;
adamc@667	122 } client;
adamc@667	123
adamc@672	124
adamc@672	125 // Persistent client state
adamc@672	126
adamc@682	127 static client *clients, clients_free, *clients_used;
adamc@682	128 static unsigned n_clients;
adamc@667	129
adamc@667	130 static pthread_mutex_t clients_mutex = PTHREAD_MUTEX_INITIALIZER;
adamc@667	131
adamc@682	132 static client *new_client() {
adamc@667	133 client *c;
adamc@667	134
adamc@667	135 pthread_mutex_lock(&clients_mutex);
adamc@667	136
adamc@667	137 if (clients_free) {
adamc@667	138 c = clients_free;
adamc@682	139 clients_free = clients_free->next;
adamc@667	140 }
adamc@667	141 else {
adamc@667	142 ++n_clients;
adamc@667	143 clients = realloc(clients, sizeof(client) * n_clients);
adamc@667	144 c = malloc(sizeof(client));
adamc@667	145 c->id = n_clients-1;
adamc@682	146 pthread_mutex_init(&c->lock, NULL);
adamc@689	147 pthread_mutex_init(&c->pull_lock, NULL);
adamc@682	148 buf_init(&c->msgs, 0);
adamc@667	149 clients[n_clients-1] = c;
adamc@667	150 }
adamc@667	151
adamc@682	152 pthread_mutex_lock(&c->lock);
adamc@667	153 c->mode = USED;
adamc@682	154 c->pass = rand();
adamc@682	155 c->sock = -1;
adamc@682	156 c->last_contact = time(NULL);
adamc@682	157 buf_reset(&c->msgs);
adamc@682	158 c->n_channels = 0;
adamc@685	159 c->refcount = 0;
adamc@682	160 pthread_mutex_unlock(&c->lock);
adamc@682	161
adamc@682	162 c->next = clients_used;
adamc@682	163 clients_used = c;
adamc@667	164
adamc@667	165 pthread_mutex_unlock(&clients_mutex);
adamc@667	166
adamc@667	167 return c;
adamc@667	168 }
adamc@667	169
adamc@685	170 static void use_client(client *c) {
adamc@685	171 pthread_mutex_lock(&c->lock);
adamc@685	172 ++c->refcount;
adamc@685	173 pthread_mutex_unlock(&c->lock);
adamc@689	174 pthread_mutex_lock(&c->pull_lock);
adamc@685	175 }
adamc@685	176
adamc@685	177 static void release_client(client *c) {
adamc@689	178 pthread_mutex_unlock(&c->pull_lock);
adamc@685	179 pthread_mutex_lock(&c->lock);
adamc@685	180 --c->refcount;
adamc@685	181 pthread_mutex_unlock(&c->lock);
adamc@689	182
adamc@685	183 }
adamc@685	184
adamc@856	185 static const char begin_msgs[] = "Content-type: text/plain\r\n\r\n";
adamc@667	186
adamc@682	187 static client *find_client(unsigned id) {
adamc@667	188 client *c;
adamc@667	189
adamc@667	190 pthread_mutex_lock(&clients_mutex);
adamc@667	191
adamc@667	192 if (id >= n_clients) {
adamc@667	193 pthread_mutex_unlock(&clients_mutex);
adamc@668	194 return NULL;
adamc@667	195 }
adamc@667	196
adamc@667	197 c = clients[id];
adamc@667	198
adamc@668	199 pthread_mutex_unlock(&clients_mutex);
adamc@668	200 return c;
adamc@668	201 }
adamc@668	202
adamc@856	203 static char *on_success = "HTTP/1.1 200 OK\r\n";
adamc@1065	204 static char *on_redirect = "HTTP/1.1 303 See Other\r\n";
adamc@856	205
adamc@856	206 void uw_set_on_success(char *s) {
adamc@856	207 on_success = s;
adamc@856	208 }
adamc@856	209
adamc@863	210 void uw_client_connect(unsigned id, int pass, int sock,
adamc@863	211 int (send)(int sockfd, const void buf, ssize_t len),
adamc@864	212 int (*close)(int fd),
adamc@864	213 void *logger_data, uw_logger log_error) {
adamc@682	214 client *c = find_client(id);
adamc@668	215
adamc@668	216 if (c == NULL) {
adamc@667	217 close(sock);
adamc@864	218 log_error(logger_data, "Out-of-bounds client request (%u)\n", id);
adamc@667	219 return;
adamc@667	220 }
adamc@667	221
adamc@682	222 pthread_mutex_lock(&c->lock);
adamc@671	223
adamc@682	224 if (c->mode != USED) {
adamc@682	225 pthread_mutex_unlock(&c->lock);
adamc@667	226 close(sock);
adamc@864	227 log_error(logger_data, "Client request for unused slot (%u)\n", id);
adamc@667	228 return;
adamc@667	229 }
adamc@667	230
adamc@682	231 if (pass != c->pass) {
adamc@682	232 pthread_mutex_unlock(&c->lock);
adamc@682	233 close(sock);
adamc@864	234 log_error(logger_data, "Wrong client password (%u, %d)\n", id, pass);
adamc@682	235 return;
adamc@667	236 }
adamc@667	237
adamc@682	238 if (c->sock != -1) {
adamc@863	239 c->close(c->sock);
adamc@682	240 c->sock = -1;
adamc@682	241 }
adamc@667	242
adamc@682	243 c->last_contact = time(NULL);
adamc@682	244
adamc@682	245 if (buf_used(&c->msgs) > 0) {
adamc@863	246 send(sock, on_success, strlen(on_success));
adamc@863	247 send(sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	248 send(sock, c->msgs.start, buf_used(&c->msgs));
adamc@682	249 buf_reset(&c->msgs);
adamc@667	250 close(sock);
adamc@667	251 }
adamc@863	252 else {
adamc@682	253 c->sock = sock;
adamc@863	254 c->send = send;
adamc@863	255 c->close = close;
adamc@863	256 }
adamc@667	257
adamc@682	258 pthread_mutex_unlock(&c->lock);
adamc@667	259 }
adamc@667	260
adamc@682	261 static void free_client(client *c) {
adamc@682	262 c->mode = UNUSED;
adamc@682	263 c->pass = -1;
adamc@667	264
adamc@682	265 c->next = clients_free;
adamc@682	266 clients_free = c;
adamc@667	267 }
adamc@667	268
adamc@682	269 static uw_Basis_channel new_channel(client *c) {
adamc@682	270 uw_Basis_channel ch = {c->id, c->n_channels++};
adamc@668	271 return ch;
adamc@668	272 }
adamc@668	273
adamc@685	274 static void client_send(client c, buf msg) {
adamc@685	275 pthread_mutex_lock(&c->lock);
adamc@671	276
adamc@682	277 if (c->sock != -1) {
adamc@863	278 c->send(c->sock, on_success, strlen(on_success));
adamc@863	279 c->send(c->sock, begin_msgs, sizeof(begin_msgs) - 1);
adamc@863	280 c->send(c->sock, msg->start, buf_used(msg));
adamc@863	281 c->close(c->sock);
adamc@682	282 c->sock = -1;
adamc@682	283 } else
adamc@682	284 buf_append(&c->msgs, msg->start, buf_used(msg));
adamc@671	285
adamc@685	286 pthread_mutex_unlock(&c->lock);
adamc@668	287 }
adamc@668	288
adamc@668	289
adamc@668	290 // Global entry points
adamc@668	291
adamc@1104	292 extern void uw_init_crypto();
adamc@1104	293
adamc@668	294 void uw_global_init() {
adamc@668	295 srand(time(NULL) ^ getpid());
adamc@668	296
adamc@668	297 clients = malloc(0);
adamc@1104	298
adamc@1104	299 uw_init_crypto();
adamc@1094	300 }
adamc@1094	301
adamc@1094	302 void uw_app_init(uw_app *app) {
adamc@1094	303 app->client_init();
adamc@668	304 }
adamc@668	305
adamc@668	306
adamc@667	307 // Single-request state
adamc@667	308
adamc@167	309 #define ERROR_BUF_LEN 1024
adamc@167	310
adamc@323	311 typedef struct regions {
adamc@323	312 struct regions *next;
adamc@323	313 } regions;
adamc@323	314
adamc@425	315 typedef struct {
adamc@425	316 void (func)(void);
adamc@425	317 void *arg;
adamc@425	318 } cleanup;
adamc@425	319
adamc@671	320 typedef struct {
adamc@682	321 unsigned client;
adamc@671	322 buf msgs;
adamc@682	323 } delta;
adamc@671	324
adamc@737	325 typedef enum {
adamc@759	326 UNSET, NORMAL, FIL, SUBFORM, SUBFORMS, ENTRY
adamc@737	327 } input_kind;
adamc@737	328
adamc@756	329 typedef struct input {
adamc@737	330 input_kind kind;
adamc@737	331 union {
adamc@737	332 char *normal;
adamc@739	333 uw_Basis_file file;
adamc@756	334 struct {
adamc@759	335 struct input fields, parent;
adamc@756	336 } subform;
adamc@759	337 struct {
adamc@759	338 struct input entries, parent;
adamc@759	339 } subforms;
adamc@759	340 struct {
adamc@759	341 struct input fields, next, *parent;
adamc@759	342 } entry;
adamc@737	343 } data;
adamc@737	344 } input;
adamc@737	345
adamc@771	346 typedef struct {
adamc@771	347 void *data;
adamc@771	348 uw_callback commit, rollback, free;
adamc@771	349 } transactional;
adamc@771	350
adamc@1061	351 typedef struct {
adamc@1061	352 char *name;
adamc@1061	353 void *data;
adamc@1061	354 void (free)(void);
adamc@1061	355 } global;
adamc@1061	356
adamc@311	357 struct uw_context {
adamc@1094	358 uw_app *app;
adamc@1094	359
adamc@854	360 char (get_header)(void , const char );
adamc@854	361 void *get_header_data;
adamc@457	362
adamc@666	363 buf outHeaders, page, heap, script;
adamc@1065	364 int returning_indirectly;
adamc@759	365 input inputs, subinputs, *cur_container;
adamc@1094	366 size_t sz_inputs, n_subinputs, used_subinputs;
adamc@167	367
adamc@565	368 int source_count;
adamc@562	369
adamc@272	370 void *db;
adamc@272	371
adamc@167	372 jmp_buf jmp_buf;
adamc@167	373
adamc@323	374 regions *regions;
adamc@323	375
adamc@425	376 cleanup cleanup, cleanup_front, *cleanup_back;
adamc@425	377
adamc@1094	378 const char *script_header;
adamc@643	379
adamc@736	380 int needs_push, needs_sig;
adamc@693	381
adamc@682	382 size_t n_deltas, used_deltas;
adamc@682	383 delta *deltas;
adamc@671	384
adamc@682	385 client *client;
adamc@682	386
adamc@771	387 transactional *transactionals;
adamc@771	388 size_t n_transactionals, used_transactionals;
adamc@771	389
adamc@1061	390 global *globals;
adamc@1061	391 size_t n_globals;
adamc@1061	392
adamc@1066	393 char *current_url;
adamc@1066	394
adamc@167	395 char error_message[ERROR_BUF_LEN];
adamc@117	396 };
adamc@117	397
adamc@687	398 uw_context uw_init() {
adamc@311	399 uw_context ctx = malloc(sizeof(struct uw_context));
adamc@136	400
adamc@1094	401 ctx->app = NULL;
adamc@1094	402
adamc@854	403 ctx->get_header = NULL;
adamc@854	404 ctx->get_header_data = NULL;
adamc@457	405
adamc@687	406 buf_init(&ctx->outHeaders, 0);
adamc@687	407 buf_init(&ctx->page, 0);
adamc@1065	408 ctx->returning_indirectly = 0;
adamc@687	409 buf_init(&ctx->heap, 0);
adamc@698	410 buf_init(&ctx->script, 1);
adamc@667	411 ctx->script.start[0] = 0;
adamc@136	412
adamc@1094	413 ctx->inputs = malloc(0);
adamc@759	414 ctx->cur_container = NULL;
adamc@756	415 ctx->subinputs = malloc(0);
adamc@1094	416 ctx->sz_inputs = ctx->n_subinputs = ctx->used_subinputs = 0;
adamc@144	417
adamc@272	418 ctx->db = NULL;
adamc@272	419
adamc@323	420 ctx->regions = NULL;
adamc@323	421
adamc@425	422 ctx->cleanup_front = ctx->cleanup_back = ctx->cleanup = malloc(0);
adamc@425	423
adamc@643	424 ctx->script_header = "";
adamc@693	425 ctx->needs_push = 0;
adamc@736	426 ctx->needs_sig = 0;
adamc@1104	427
adamc@167	428 ctx->error_message[0] = 0;
adamc@167	429
adamc@565	430 ctx->source_count = 0;
adamc@562	431
adamc@682	432 ctx->n_deltas = ctx->used_deltas = 0;
adamc@671	433 ctx->deltas = malloc(0);
adamc@671	434
adamc@700	435 ctx->client = NULL;
adamc@700	436
adamc@700	437 ctx->error_message[0] = 0;
adamc@700	438
adamc@771	439 ctx->transactionals = malloc(0);
adamc@771	440 ctx->n_transactionals = ctx->used_transactionals = 0;
adamc@771	441
adamc@1061	442 ctx->globals = malloc(0);
adamc@1061	443 ctx->n_globals = 0;
adamc@1061	444
adamc@1066	445 ctx->current_url = "";
adamc@1066	446
adamc@117	447 return ctx;
adamc@106	448 }
adamc@106	449
adamc@1094	450 void uw_set_app(uw_context ctx, uw_app *app) {
adamc@1094	451 ctx->app = app;
adamc@1094	452
adamc@1105	453 if (app && app->inputs_len > ctx->sz_inputs) {
adamc@1094	454 ctx->sz_inputs = app->inputs_len;
adamc@1094	455 ctx->inputs = realloc(ctx->inputs, ctx->sz_inputs * sizeof(input));
adamc@1094	456 memset(ctx->inputs, 0, ctx->sz_inputs * sizeof(input));
adamc@1094	457 }
adamc@1094	458 }
adamc@1094	459
adamc@311	460 void uw_set_db(uw_context ctx, void *db) {
adamc@272	461 ctx->db = db;
adamc@272	462 }
adamc@272	463
adamc@311	464 void *uw_get_db(uw_context ctx) {
adamc@272	465 return ctx->db;
adamc@272	466 }
adamc@272	467
adamc@311	468 void uw_free(uw_context ctx) {
adamc@671	469 size_t i;
adamc@671	470
adamc@666	471 buf_free(&ctx->outHeaders);
adamc@666	472 buf_free(&ctx->script);
adamc@666	473 buf_free(&ctx->page);
adamc@666	474 buf_free(&ctx->heap);
adamc@144	475 free(ctx->inputs);
adamc@756	476 free(ctx->subinputs);
adamc@425	477 free(ctx->cleanup);
adamc@771	478 free(ctx->transactionals);
adamc@671	479
adamc@682	480 for (i = 0; i < ctx->n_deltas; ++i)
adamc@671	481 buf_free(&ctx->deltas[i].msgs);
adamc@671	482
adamc@1061	483 for (i = 0; i < ctx->n_globals; ++i)
adamc@1089	484 if (ctx->globals[i].free)
adamc@1089	485 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	486
adamc@136	487 free(ctx);
adamc@136	488 }
adamc@136	489
adamc@562	490 void uw_reset_keep_error_message(uw_context ctx) {
adamc@756	491 size_t i;
adamc@756	492
adamc@666	493 buf_reset(&ctx->outHeaders);
adamc@666	494 buf_reset(&ctx->script);
adamc@667	495 ctx->script.start[0] = 0;
adamc@666	496 buf_reset(&ctx->page);
adamc@1065	497 ctx->returning_indirectly = 0;
adamc@666	498 buf_reset(&ctx->heap);
adamc@323	499 ctx->regions = NULL;
adamc@425	500 ctx->cleanup_front = ctx->cleanup;
adamc@565	501 ctx->source_count = 0;
adamc@682	502 ctx->used_deltas = 0;
adamc@682	503 ctx->client = NULL;
adamc@759	504 ctx->cur_container = NULL;
adamc@771	505 ctx->used_transactionals = 0;
adamc@167	506 }
adamc@167	507
adamc@562	508 void uw_reset_keep_request(uw_context ctx) {
adamc@562	509 uw_reset_keep_error_message(ctx);
adamc@562	510 ctx->error_message[0] = 0;
adamc@167	511 }
adamc@167	512
adamc@311	513 void uw_reset(uw_context ctx) {
adamc@311	514 uw_reset_keep_request(ctx);
adamc@1105	515 if (ctx->app)
adamc@1105	516 memset(ctx->inputs, 0, ctx->app->inputs_len * sizeof(input));
adamc@756	517 memset(ctx->subinputs, 0, ctx->n_subinputs * sizeof(input));
adamc@756	518 ctx->used_subinputs = 0;
adamc@144	519 }
adamc@144	520
adamc@311	521 failure_kind uw_begin_init(uw_context ctx) {
adamc@272	522 int r = setjmp(ctx->jmp_buf);
adamc@272	523
adamc@1105	524 if (r == 0 && ctx->app)
adamc@1094	525 ctx->app->db_init(ctx);
adamc@272	526
adamc@272	527 return r;
adamc@272	528 }
adamc@272	529
adamc@854	530 void uw_set_headers(uw_context ctx, char (get_header)(void , const char ), void *get_header_data) {
adamc@854	531 ctx->get_header = get_header;
adamc@854	532 ctx->get_header_data = get_header_data;
adamc@742	533 }
adamc@742	534
adamc@801	535 static void uw_set_error(uw_context ctx, const char *fmt, ...) {
adamc@801	536 va_list ap;
adamc@801	537 va_start(ap, fmt);
adamc@801	538
adamc@801	539 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@801	540 }
adamc@801	541
adamc@311	542 __attribute__((noreturn)) void uw_error(uw_context ctx, failure_kind fk, const char *fmt, ...) {
adamc@425	543 cleanup *cl;
adamc@425	544
adamc@167	545 va_list ap;
adamc@167	546 va_start(ap, fmt);
adamc@167	547
adamc@167	548 vsnprintf(ctx->error_message, ERROR_BUF_LEN, fmt, ap);
adamc@167	549
adamc@425	550 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@425	551 cl->func(cl->arg);
adamc@425	552
adamc@425	553 ctx->cleanup_front = ctx->cleanup;
adamc@425	554
adamc@190	555 longjmp(ctx->jmp_buf, fk);
adamc@167	556 }
adamc@167	557
adamc@425	558 void uw_push_cleanup(uw_context ctx, void (func)(void ), void *arg) {
adamc@425	559 if (ctx->cleanup_front >= ctx->cleanup_back) {
adamc@425	560 int len = ctx->cleanup_back - ctx->cleanup, newLen;
adamc@425	561 if (len == 0)
adamc@425	562 newLen = 1;
adamc@425	563 else
adamc@428	564 newLen = len * 2;
adamc@470	565 ctx->cleanup = realloc(ctx->cleanup, newLen * sizeof(cleanup));
adamc@425	566 ctx->cleanup_front = ctx->cleanup + len;
adamc@425	567 ctx->cleanup_back = ctx->cleanup + newLen;
adamc@425	568 }
adamc@425	569
adamc@425	570 ctx->cleanup_front->func = func;
adamc@425	571 ctx->cleanup_front->arg = arg;
adamc@425	572 ++ctx->cleanup_front;
adamc@425	573 }
adamc@425	574
adamc@682	575 uw_Basis_string uw_Basis_requestHeader(uw_context ctx, uw_Basis_string h) {
adamc@854	576 return ctx->get_header(ctx->get_header_data, h);
adamc@682	577 }
adamc@682	578
adamc@682	579 void uw_login(uw_context ctx) {
adamc@693	580 if (ctx->needs_push) {
adamc@682	581 char id_s, pass_s;
adamc@682	582
adamc@682	583 if ((id_s = uw_Basis_requestHeader(ctx, "UrWeb-Client"))
adamc@682	584 && (pass_s = uw_Basis_requestHeader(ctx, "UrWeb-Pass"))) {
adamc@682	585 unsigned id = atoi(id_s);
adamc@682	586 int pass = atoi(pass_s);
adamc@682	587 client *c = find_client(id);
adamc@682	588
adamc@682	589 if (c == NULL)
adamc@682	590 uw_error(ctx, FATAL, "Unknown client ID in HTTP headers (%s, %s)", id_s, pass_s);
adamc@682	591 else {
adamc@685	592 use_client(c);
adamc@682	593 ctx->client = c;
adamc@682	594
adamc@682	595 if (c->mode != USED)
adamc@682	596 uw_error(ctx, FATAL, "Stale client ID (%u) in subscription request", id);
adamc@682	597 if (c->pass != pass)
adamc@682	598 uw_error(ctx, FATAL, "Wrong client password (%u, %d) in subscription request", id, pass);
adamc@682	599 }
adamc@682	600 } else {
adamc@682	601 client *c = new_client();
adamc@685	602 use_client(c);
adamc@682	603 ctx->client = c;
adamc@864	604 }
adamc@682	605 }
adamc@682	606 }
adamc@682	607
adamc@671	608 failure_kind uw_begin(uw_context ctx, char *path) {
adamc@671	609 int r = setjmp(ctx->jmp_buf);
adamc@671	610
adamc@671	611 if (r == 0) {
adamc@1094	612 if (ctx->app->db_begin(ctx))
adamc@671	613 uw_error(ctx, BOUNDED_RETRY, "Error running SQL BEGIN");
adamc@682	614
adamc@1094	615 ctx->app->handle(ctx, path);
adamc@671	616 }
adamc@671	617
adamc@671	618 return r;
adamc@671	619 }
adamc@671	620
adamc@772	621 uw_Basis_client uw_Basis_self(uw_context ctx) {
adamc@682	622 if (ctx->client == NULL)
adamc@682	623 uw_error(ctx, FATAL, "Call to Basis.self() from page that has only server-side code");
adamc@682	624
adamc@682	625 return ctx->client->id;
adamc@682	626 }
adamc@682	627
adamc@425	628 void uw_pop_cleanup(uw_context ctx) {
adamc@425	629 if (ctx->cleanup_front == ctx->cleanup)
adamc@425	630 uw_error(ctx, FATAL, "Attempt to pop from empty cleanup action stack");
adamc@425	631
adamc@425	632 --ctx->cleanup_front;
adamc@425	633 ctx->cleanup_front->func(ctx->cleanup_front->arg);
adamc@425	634 }
adamc@425	635
adamc@311	636 char *uw_error_message(uw_context ctx) {
adamc@167	637 return ctx->error_message;
adamc@167	638 }
adamc@167	639
adamc@759	640 static input *INP(uw_context ctx) {
adamc@759	641 if (ctx->cur_container == NULL)
adamc@759	642 return ctx->inputs;
adamc@759	643 else if (ctx->cur_container->kind == SUBFORM)
adamc@759	644 return ctx->cur_container->data.subform.fields;
adamc@759	645 else if (ctx->cur_container->kind == ENTRY)
adamc@759	646 return ctx->cur_container->data.entry.fields;
adamc@759	647 else
adamc@760	648 uw_error(ctx, FATAL, "INP: Wrong kind (%d, %p)", ctx->cur_container->kind, ctx->cur_container);
adamc@759	649 }
adamc@759	650
adamc@760	651 static void adjust_pointer(input *ptr, input old_start, input *new_start, size_t len) {
adamc@760	652 if (ptr != NULL && ptr >= old_start && *ptr < old_start + len)
adamc@760	653 *ptr += new_start - old_start;
adamc@760	654 }
adamc@760	655
adamc@760	656 static void adjust_input(input x, input old_start, input *new_start, size_t len) {
adamc@759	657 switch (x->kind) {
adamc@759	658 case SUBFORM:
adamc@760	659 adjust_pointer(&x->data.subform.fields, old_start, new_start, len);
adamc@760	660 adjust_pointer(&x->data.subform.parent, old_start, new_start, len);
adamc@759	661 break;
adamc@759	662 case SUBFORMS:
adamc@760	663 adjust_pointer(&x->data.subforms.entries, old_start, new_start, len);
adamc@760	664 adjust_pointer(&x->data.subforms.parent, old_start, new_start, len);
adamc@759	665 break;
adamc@759	666 case ENTRY:
adamc@760	667 adjust_pointer(&x->data.entry.fields, old_start, new_start, len);
adamc@760	668 adjust_pointer(&x->data.entry.next, old_start, new_start, len);
adamc@760	669 adjust_pointer(&x->data.entry.parent, old_start, new_start, len);
adamc@759	670 }
adamc@759	671 }
adamc@759	672
adamc@759	673 static input *check_input_space(uw_context ctx, size_t len) {
adamc@759	674 size_t i;
adamc@759	675 input *r;
adamc@759	676
adamc@759	677 if (ctx->used_subinputs + len >= ctx->n_subinputs) {
adamc@759	678 input new_subinputs = realloc(ctx->subinputs, sizeof(input) (ctx->used_subinputs + len));
adamc@759	679 size_t offset = new_subinputs - ctx->subinputs;
adamc@759	680
adamc@760	681 if (ctx->subinputs != new_subinputs) {
adamc@760	682 for (i = 0; i < ctx->used_subinputs; ++i)
adamc@760	683 adjust_input(&new_subinputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@1094	684 for (i = 0; i < ctx->app->inputs_len; ++i)
adamc@760	685 adjust_input(&ctx->inputs[i], ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	686
adamc@760	687 adjust_pointer(&ctx->cur_container, ctx->subinputs, new_subinputs, ctx->used_subinputs);
adamc@760	688
adamc@760	689 ctx->n_subinputs = ctx->used_subinputs + len;
adamc@760	690 ctx->subinputs = new_subinputs;
adamc@760	691 }
adamc@759	692 }
adamc@759	693
adamc@759	694 r = &ctx->subinputs[ctx->used_subinputs];
adamc@759	695
adamc@759	696 for (i = 0; i < len; ++i)
adamc@759	697 ctx->subinputs[ctx->used_subinputs++].kind = UNUSED;
adamc@759	698
adamc@759	699 return r;
adamc@759	700 }
adamc@756	701
adamc@801	702 int uw_set_input(uw_context ctx, const char name, char value) {
adamc@1050	703 //printf("Input name %s\n", name);
adamc@1038	704
adamc@756	705 if (!strcasecmp(name, ".b")) {
adamc@1094	706 int n = ctx->app->input_num(value);
adamc@756	707 input *inps;
adamc@756	708
adamc@801	709 if (n < 0) {
adamc@801	710 uw_set_error(ctx, "Bad subform name %s", value);
adamc@801	711 return -1;
adamc@801	712 }
adamc@801	713
adamc@1094	714 if (n >= ctx->app->inputs_len) {
adamc@801	715 uw_set_error(ctx, "For subform name %s, index %d is out of range", value, n);
adamc@801	716 return -1;
adamc@801	717 }
adamc@756	718
adamc@1094	719 inps = check_input_space(ctx, ctx->app->inputs_len);
adamc@759	720
adamc@759	721 INP(ctx)[n].kind = SUBFORM;
adamc@759	722 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@759	723 INP(ctx)[n].data.subform.fields = inps;
adamc@759	724 ctx->cur_container = &INP(ctx)[n];
adamc@756	725 } else if (!strcasecmp(name, ".e")) {
adamc@756	726 input *tmp;
adamc@756	727
adamc@801	728 if (ctx->cur_container == NULL) {
adamc@801	729 uw_set_error(ctx, "Unmatched subform closer");
adamc@801	730 return -1;
adamc@801	731 }
adamc@756	732
adamc@759	733 tmp = ctx->cur_container;
adamc@759	734 switch (tmp->kind) {
adamc@759	735 case SUBFORM:
adamc@759	736 ctx->cur_container = tmp->data.subform.parent;
adamc@759	737 tmp->data.subform.parent = NULL;
adamc@759	738 break;
adamc@759	739 case SUBFORMS:
adamc@759	740 ctx->cur_container = tmp->data.subforms.parent;
adamc@759	741 tmp->data.subforms.parent = NULL;
adamc@759	742 break;
adamc@759	743 case ENTRY:
adamc@759	744 ctx->cur_container = tmp->data.entry.parent;
adamc@759	745 break;
adamc@759	746 default:
adamc@801	747 uw_set_error(ctx, "uw_set_input: Wrong kind");
adamc@801	748 return -1;
adamc@759	749 }
adamc@759	750 } else if (!strcasecmp(name, ".s")) {
adamc@1094	751 int n = ctx->app->input_num(value);
adamc@759	752
adamc@801	753 if (n < 0) {
adamc@801	754 uw_set_error(ctx, "Bad subforms name %s", value);
adamc@801	755 return -1;
adamc@801	756 }
adamc@801	757
adamc@1094	758 if (n >= ctx->app->inputs_len) {
adamc@801	759 uw_set_error(ctx, "For subforms name %s, index %d is out of range", value, n);
adamc@801	760 return -1;
adamc@801	761 }
adamc@759	762
adamc@759	763 INP(ctx)[n].kind = SUBFORMS;
adamc@759	764 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	765 INP(ctx)[n].data.subforms.entries = NULL;
adamc@759	766 ctx->cur_container = &INP(ctx)[n];
adamc@759	767 } else if (!strcasecmp(name, ".i")) {
adamc@759	768 input *inps;
adamc@759	769
adamc@801	770 if (!ctx->cur_container) {
adamc@801	771 uw_set_error(ctx, "New entry without container");
adamc@801	772 return -1;
adamc@801	773 }
adamc@801	774
adamc@801	775 if (ctx->cur_container->kind != SUBFORMS) {
adamc@801	776 uw_set_error(ctx, "Bad kind for entry parent");
adamc@801	777 return -1;
adamc@801	778 }
adamc@759	779
adamc@1094	780 inps = check_input_space(ctx, ctx->app->inputs_len + 1);
adamc@759	781
adamc@759	782 inps->kind = ENTRY;
adamc@759	783 inps->data.entry.parent = ctx->cur_container;
adamc@759	784 inps->data.entry.next = ctx->cur_container->data.subforms.entries;
adamc@759	785 ctx->cur_container->data.subforms.entries = inps;
adamc@759	786
adamc@759	787 inps->data.entry.fields = inps+1;
adamc@759	788 ctx->cur_container = inps;
adamc@756	789 } else {
adamc@1094	790 int n = ctx->app->input_num(name);
adamc@756	791
adamc@801	792 if (n < 0) {
adamc@1038	793 if (!strcmp(name, "null"))
adamc@1038	794 return 0;
adamc@801	795 uw_set_error(ctx, "Bad input name %s", name);
adamc@801	796 return -1;
adamc@801	797 }
adamc@801	798
adamc@1094	799 if (n >= ctx->app->inputs_len) {
adamc@801	800 uw_set_error(ctx, "For input name %s, index %d is out of range", name, n);
adamc@801	801 return -1;
adamc@801	802 }
adamc@756	803
adamc@756	804 INP(ctx)[n].kind = NORMAL;
adamc@756	805 INP(ctx)[n].data.normal = value;
adamc@756	806 }
adamc@801	807
adamc@801	808 return 0;
adamc@144	809 }
adamc@144	810
adamc@311	811 char *uw_get_input(uw_context ctx, int n) {
adamc@169	812 if (n < 0)
adamc@311	813 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	814 if (n >= ctx->app->inputs_len)
adamc@311	815 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	816
adamc@756	817 switch (INP(ctx)[n].kind) {
adamc@737	818 case UNSET:
adamc@737	819 return NULL;
adamc@739	820 case FIL:
adamc@739	821 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	822 case SUBFORM:
adamc@756	823 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	824 case SUBFORMS:
adamc@759	825 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	826 case ENTRY:
adamc@759	827 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	828 case NORMAL:
adamc@756	829 return INP(ctx)[n].data.normal;
adamc@737	830 default:
adamc@737	831 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	832 }
adamc@138	833 }
adamc@138	834
adamc@311	835 char *uw_get_optional_input(uw_context ctx, int n) {
adamc@190	836 if (n < 0)
adamc@311	837 uw_error(ctx, FATAL, "Negative input index %d", n);
adamc@1094	838 if (n >= ctx->app->inputs_len)
adamc@311	839 uw_error(ctx, FATAL, "Out-of-bounds input index %d", n);
adamc@737	840
adamc@756	841 switch (INP(ctx)[n].kind) {
adamc@737	842 case UNSET:
adamc@737	843 return "";
adamc@739	844 case FIL:
adamc@739	845 uw_error(ctx, FATAL, "Tried to read a file form input as normal");
adamc@756	846 case SUBFORM:
adamc@756	847 uw_error(ctx, FATAL, "Tried to read a subform form input as normal");
adamc@759	848 case SUBFORMS:
adamc@759	849 uw_error(ctx, FATAL, "Tried to read a subforms form input as normal");
adamc@759	850 case ENTRY:
adamc@759	851 uw_error(ctx, FATAL, "Tried to read an entry form input as normal");
adamc@737	852 case NORMAL:
adamc@756	853 return INP(ctx)[n].data.normal;
adamc@737	854 default:
adamc@737	855 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	856 }
adamc@737	857 }
adamc@737	858
adamc@801	859 int uw_set_file_input(uw_context ctx, const char *name, uw_Basis_file f) {
adamc@1094	860 int n = ctx->app->input_num(name);
adamc@737	861
adamc@801	862 if (n < 0) {
adamc@801	863 uw_set_error(ctx, "Bad file input name %s", name);
adamc@801	864 return -1;
adamc@801	865 }
adamc@801	866
adamc@1094	867 if (n >= ctx->app->inputs_len) {
adamc@801	868 uw_set_error(ctx, "For file input name %s, index %d is out of range", name, n);
adamc@801	869 return -1;
adamc@801	870 }
adamc@737	871
adamc@739	872 ctx->inputs[n].kind = FIL;
adamc@739	873 ctx->inputs[n].data.file = f;
adamc@801	874
adamc@801	875 return 0;
adamc@737	876 }
adamc@737	877
adamc@739	878 void *uw_malloc(uw_context ctx, size_t len);
adamc@739	879
adamc@760	880 static void parents(input *inp) {
adamc@760	881 printf("Stack: %p\n", inp);
adamc@760	882 while (inp) {
adamc@760	883 switch (inp->kind) {
adamc@760	884 case NORMAL:
adamc@760	885 printf("Normal(%p)\n", inp);
adamc@760	886 break;
adamc@760	887 case FIL:
adamc@760	888 printf("File(%p)\n", inp);
adamc@760	889 break;
adamc@760	890 case SUBFORM:
adamc@760	891 printf("Subform; fields = %p\n", inp->data.subform.fields);
adamc@760	892 inp = inp->data.subform.parent;
adamc@760	893 break;
adamc@760	894 case SUBFORMS:
adamc@760	895 printf("Subforms; entries = %p\n", inp->data.subforms.entries);
adamc@760	896 inp = inp->data.subforms.parent;
adamc@760	897 break;
adamc@760	898 case ENTRY:
adamc@760	899 printf("Entry; fields = %p; next = %p\n", inp->data.entry.fields, inp->data.entry.next);
adamc@760	900 inp = inp->data.entry.parent;
adamc@760	901 break;
adamc@760	902 default:
adamc@760	903 inp = NULL;
adamc@760	904 }
adamc@760	905 }
adamc@760	906 }
adamc@760	907
adamc@739	908 uw_Basis_file uw_get_file_input(uw_context ctx, int n) {
adamc@737	909 if (n < 0)
adamc@737	910 uw_error(ctx, FATAL, "Negative file input index %d", n);
adamc@1094	911 if (n >= ctx->app->inputs_len)
adamc@737	912 uw_error(ctx, FATAL, "Out-of-bounds file input index %d", n);
adamc@737	913
adamc@756	914 switch (INP(ctx)[n].kind) {
adamc@737	915 case UNSET:
adamc@737	916 {
adamc@739	917 char *data = uw_malloc(ctx, 0);
adamc@740	918 uw_Basis_file f = {NULL, "", {0, data}};
adamc@739	919 return f;
adamc@737	920 }
adamc@739	921 case FIL:
adamc@756	922 return INP(ctx)[n].data.file;
adamc@737	923 case NORMAL:
adamc@737	924 uw_error(ctx, FATAL, "Tried to read a normal form input as files");
adamc@756	925 case SUBFORM:
adamc@756	926 uw_error(ctx, FATAL, "Tried to read a subform form input as files");
adamc@759	927 case SUBFORMS:
adamc@759	928 uw_error(ctx, FATAL, "Tried to read a subforms form input as files");
adamc@759	929 case ENTRY:
adamc@759	930 uw_error(ctx, FATAL, "Tried to read an entry form input as files");
adamc@737	931 default:
adamc@737	932 uw_error(ctx, FATAL, "Impossible input kind");
adamc@737	933 }
adamc@190	934 }
adamc@190	935
adamc@756	936 void uw_enter_subform(uw_context ctx, int n) {
adamc@756	937 if (n < 0)
adamc@756	938 uw_error(ctx, FATAL, "Negative subform index %d", n);
adamc@1094	939 if (n >= ctx->app->inputs_len)
adamc@756	940 uw_error(ctx, FATAL, "Out-of-bounds subform index %d", n);
adamc@756	941
adamc@756	942 switch (INP(ctx)[n].kind) {
adamc@756	943 case UNSET:
adamc@756	944 uw_error(ctx, FATAL, "Missing subform");
adamc@756	945 case FIL:
adamc@756	946 uw_error(ctx, FATAL, "Tried to read a file form input as subform");
adamc@756	947 case NORMAL:
adamc@756	948 uw_error(ctx, FATAL, "Tried to read a normal form input as subform");
adamc@759	949 case SUBFORMS:
adamc@759	950 uw_error(ctx, FATAL, "Tried to read a subforms form input as subform");
adamc@759	951 case ENTRY:
adamc@759	952 uw_error(ctx, FATAL, "Tried to read an entry form input as subform");
adamc@756	953 case SUBFORM:
adamc@759	954 INP(ctx)[n].data.subform.parent = ctx->cur_container;
adamc@760	955 ctx->cur_container = &INP(ctx)[n];
adamc@756	956 return;
adamc@756	957 default:
adamc@756	958 uw_error(ctx, FATAL, "Impossible input kind");
adamc@756	959 }
adamc@756	960 }
adamc@756	961
adamc@756	962 void uw_leave_subform(uw_context ctx) {
adamc@756	963 input *tmp;
adamc@756	964
adamc@759	965 if (ctx->cur_container == NULL)
adamc@756	966 uw_error(ctx, FATAL, "Unmatched uw_leave_subform");
adamc@756	967
adamc@759	968 tmp = ctx->cur_container;
adamc@759	969 ctx->cur_container = tmp->data.subform.parent;
adamc@759	970 tmp->data.subform.parent = NULL;
adamc@759	971 }
adamc@759	972
adamc@759	973 int uw_enter_subforms(uw_context ctx, int n) {
adamc@759	974 input *inps;
adamc@759	975
adamc@759	976 if (n < 0)
adamc@759	977 uw_error(ctx, FATAL, "Negative subforms index %d", n);
adamc@1094	978 if (n >= ctx->app->inputs_len)
adamc@759	979 uw_error(ctx, FATAL, "Out-of-bounds subforms index %d", n);
adamc@759	980
adamc@759	981 switch (INP(ctx)[n].kind) {
adamc@759	982 case UNSET:
adamc@759	983 uw_error(ctx, FATAL, "Missing subforms");
adamc@759	984 case FIL:
adamc@759	985 uw_error(ctx, FATAL, "Tried to read a file form input as subforms");
adamc@759	986 case NORMAL:
adamc@759	987 uw_error(ctx, FATAL, "Tried to read a normal form input %p as subforms", &INP(ctx)[n]);
adamc@759	988 case SUBFORM:
adamc@759	989 uw_error(ctx, FATAL, "Tried to read a subform form input as subforms");
adamc@759	990 case ENTRY:
adamc@759	991 uw_error(ctx, FATAL, "Tried to read an entry form input as subforms");
adamc@759	992 case SUBFORMS:
adamc@759	993 inps = INP(ctx)[n].data.subforms.entries;
adamc@759	994 if (inps) {
adamc@759	995 INP(ctx)[n].data.subforms.parent = ctx->cur_container;
adamc@759	996 ctx->cur_container = INP(ctx)[n].data.subforms.entries;
adamc@759	997 return 1;
adamc@759	998 } else
adamc@759	999 return 0;
adamc@759	1000 default:
adamc@759	1001 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1002 }
adamc@759	1003 }
adamc@759	1004
adamc@759	1005 int uw_next_entry(uw_context ctx) {
adamc@759	1006 if (ctx->cur_container == NULL)
adamc@759	1007 uw_error(ctx, FATAL, "uw_next_entry(NULL)");
adamc@759	1008
adamc@759	1009 switch (ctx->cur_container->kind) {
adamc@759	1010 case UNSET:
adamc@759	1011 uw_error(ctx, FATAL, "Missing entry");
adamc@759	1012 case FIL:
adamc@759	1013 uw_error(ctx, FATAL, "Tried to read a file form input as entry");
adamc@759	1014 case NORMAL:
adamc@759	1015 uw_error(ctx, FATAL, "Tried to read a normal form input as entry");
adamc@759	1016 case SUBFORM:
adamc@759	1017 uw_error(ctx, FATAL, "Tried to read a subform form input as entry");
adamc@759	1018 case SUBFORMS:
adamc@759	1019 uw_error(ctx, FATAL, "Tried to read a subforms form input as entry");
adamc@759	1020 case ENTRY:
adamc@759	1021 if (ctx->cur_container->data.entry.next) {
adamc@759	1022 ctx->cur_container = ctx->cur_container->data.entry.next;
adamc@759	1023 return 1;
adamc@759	1024 } else {
adamc@759	1025 ctx->cur_container = ctx->cur_container->data.entry.parent->data.subforms.parent;
adamc@759	1026 return 0;
adamc@759	1027 }
adamc@759	1028 default:
adamc@759	1029 uw_error(ctx, FATAL, "Impossible input kind");
adamc@759	1030 }
adamc@756	1031 }
adamc@756	1032
adamc@643	1033 void uw_set_script_header(uw_context ctx, const char *s) {
adamc@643	1034 ctx->script_header = s;
adamc@643	1035 }
adamc@643	1036
adamc@1094	1037 const char *uw_get_url_prefix(uw_context ctx) {
adamc@1094	1038 return ctx->app->url_prefix;
adamc@667	1039 }
adamc@667	1040
adamc@693	1041 void uw_set_needs_push(uw_context ctx, int n) {
adamc@693	1042 ctx->needs_push = n;
adamc@693	1043 }
adamc@693	1044
adamc@736	1045 void uw_set_needs_sig(uw_context ctx, int n) {
adamc@736	1046 ctx->needs_sig = n;
adamc@736	1047 }
adamc@736	1048
adamc@667	1049
adamc@667	1050 static void buf_check_ctx(uw_context ctx, buf b, size_t extra, const char desc) {
adamc@666	1051 if (b->back - b->front < extra) {
adamc@666	1052 size_t desired = b->front - b->start + extra, next;
adamc@136	1053 char *new_heap;
adamc@136	1054
adamc@666	1055 next = b->back - b->start;
adamc@317	1056 if (next == 0)
adamc@317	1057 next = 1;
adamc@317	1058 for (; next < desired; next *= 2);
adamc@136	1059
adamc@666	1060 new_heap = realloc(b->start, next);
adamc@666	1061 b->front = new_heap + (b->front - b->start);
adamc@666	1062 b->back = new_heap + next;
adamc@136	1063
adamc@667	1064 if (new_heap != b->start) {
adamc@666	1065 b->start = new_heap;
adamc@666	1066 uw_error(ctx, UNLIMITED_RETRY, "Couldn't allocate new %s contiguously", desc);
adamc@136	1067 }
adamc@136	1068
adamc@666	1069 b->start = new_heap;
adamc@136	1070 }
adamc@136	1071 }
adamc@136	1072
adamc@832	1073 void uw_check_heap(uw_context ctx, size_t extra) {
adamc@667	1074 buf_check_ctx(ctx, &ctx->heap, extra, "heap chunk");
adamc@666	1075 }
adamc@666	1076
adamc@832	1077 char *uw_heap_front(uw_context ctx) {
adamc@832	1078 return ctx->heap.front;
adamc@832	1079 }
adamc@832	1080
adamc@832	1081 void uw_set_heap_front(uw_context ctx, char *fr) {
adamc@832	1082 ctx->heap.front = fr;
adamc@832	1083 }
adamc@832	1084
adamc@311	1085 void *uw_malloc(uw_context ctx, size_t len) {
adamc@136	1086 void *result;
adamc@136	1087
adamc@311	1088 uw_check_heap(ctx, len);
adamc@136	1089
adamc@666	1090 result = ctx->heap.front;
adamc@666	1091 ctx->heap.front += len;
adamc@136	1092 return result;
adamc@117	1093 }
adamc@117	1094
adamc@323	1095 void uw_begin_region(uw_context ctx) {
adamc@666	1096 regions r = (regions ) ctx->heap.front;
adamc@323	1097
adamc@323	1098 uw_check_heap(ctx, sizeof(regions));
adamc@323	1099
adamc@666	1100 ctx->heap.front += sizeof(regions);
adamc@323	1101
adamc@323	1102 r->next = ctx->regions;
adamc@323	1103 ctx->regions = r;
adamc@323	1104 }
adamc@323	1105
adamc@323	1106 void uw_end_region(uw_context ctx) {
adamc@323	1107 regions *r = ctx->regions;
adamc@323	1108
adamc@323	1109 if (r == NULL)
adamc@323	1110 uw_error(ctx, FATAL, "Region stack underflow");
adamc@323	1111
adamc@666	1112 ctx->heap.front = (char *) r;
adamc@323	1113 ctx->regions = r->next;
adamc@323	1114 }
adamc@323	1115
adamc@324	1116 void uw_memstats(uw_context ctx) {
adamc@666	1117 printf("Headers: %d/%d\n", buf_used(&ctx->outHeaders), buf_avail(&ctx->outHeaders));
adamc@666	1118 printf("Script: %d/%d\n", buf_used(&ctx->script), buf_avail(&ctx->script));
adamc@666	1119 printf("Page: %d/%d\n", buf_used(&ctx->page), buf_avail(&ctx->page));
adamc@666	1120 printf("Heap: %d/%d\n", buf_used(&ctx->heap), buf_avail(&ctx->heap));
adamc@324	1121 }
adamc@324	1122
adamc@311	1123 int uw_send(uw_context ctx, int sock) {
adamc@666	1124 int n = uw_really_send(sock, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@462	1125
adamc@462	1126 if (n < 0)
adamc@462	1127 return n;
adamc@462	1128
adamc@462	1129 n = uw_really_send(sock, "\r\n", 2);
adamc@462	1130
adamc@462	1131 if (n < 0)
adamc@462	1132 return n;
adamc@462	1133
adamc@666	1134 return uw_really_send(sock, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@462	1135 }
adamc@462	1136
adamc@856	1137 int uw_print(uw_context ctx, int fd) {
adamc@856	1138 int n = uw_really_write(fd, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@856	1139
adamc@856	1140 if (n < 0)
adamc@856	1141 return n;
adamc@856	1142
adamc@856	1143 n = uw_really_write(fd, "\r\n", 2);
adamc@856	1144
adamc@856	1145 if (n < 0)
adamc@856	1146 return n;
adamc@856	1147
adamc@856	1148 return uw_really_write(fd, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@856	1149 }
adamc@856	1150
adamc@860	1151 int uw_output(uw_context ctx, int (output)(void data, char buf, size_t len), void data) {
adamc@860	1152 int n = output(data, ctx->outHeaders.start, ctx->outHeaders.front - ctx->outHeaders.start);
adamc@860	1153
adamc@860	1154 if (n < 0)
adamc@860	1155 return n;
adamc@860	1156
adamc@860	1157 n = output(data, "\r\n", 2);
adamc@860	1158
adamc@860	1159 if (n < 0)
adamc@860	1160 return n;
adamc@860	1161
adamc@860	1162 return output(data, ctx->page.start, ctx->page.front - ctx->page.start);
adamc@860	1163 }
adamc@860	1164
adamc@462	1165 static void uw_check_headers(uw_context ctx, size_t extra) {
adamc@667	1166 buf_check(&ctx->outHeaders, extra);
adamc@462	1167 }
adamc@462	1168
adamc@462	1169 void uw_write_header(uw_context ctx, uw_Basis_string s) {
adamc@462	1170 int len = strlen(s);
adamc@462	1171
adamc@462	1172 uw_check_headers(ctx, len + 1);
adamc@666	1173 strcpy(ctx->outHeaders.front, s);
adamc@666	1174 ctx->outHeaders.front += len;
adamc@562	1175 }
adamc@562	1176
adamc@562	1177 static void uw_check_script(uw_context ctx, size_t extra) {
adamc@667	1178 buf_check(&ctx->script, extra);
adamc@562	1179 }
adamc@562	1180
adamc@562	1181 void uw_write_script(uw_context ctx, uw_Basis_string s) {
adamc@562	1182 int len = strlen(s);
adamc@562	1183
adamc@562	1184 uw_check_script(ctx, len + 1);
adamc@666	1185 strcpy(ctx->script.front, s);
adamc@666	1186 ctx->script.front += len;
adamc@562	1187 }
adamc@562	1188
adamc@645	1189 const char *uw_Basis_get_script(uw_context ctx, uw_unit u) {
adamc@916	1190 return "<sc>";
adamc@565	1191 }
adamc@565	1192
adamc@695	1193 uw_Basis_string uw_Basis_maybe_onload(uw_context ctx, uw_Basis_string s) {
adamc@695	1194 if (s[0] == 0)
adamc@695	1195 return "";
adamc@695	1196 else {
adamc@695	1197 char *r = uw_malloc(ctx, 11 + strlen(s));
adamc@695	1198 sprintf(r, " onload='%s'", s);
adamc@695	1199 return r;
adamc@695	1200 }
adamc@695	1201 }
adamc@695	1202
adamc@1042	1203 uw_Basis_string uw_Basis_maybe_onunload(uw_context ctx, uw_Basis_string s) {
adamc@1042	1204 if (ctx->script_header[0] == 0)
adamc@1042	1205 return "";
adamc@1042	1206 else {
adamc@1042	1207 char *r = uw_malloc(ctx, 22 + strlen(s));
adamc@1042	1208 sprintf(r, " onunload='unload();%s'", s);
adamc@1042	1209 return r;
adamc@1042	1210 }
adamc@1042	1211 }
adamc@1042	1212
adamc@694	1213 const char *uw_Basis_get_settings(uw_context ctx, uw_unit u) {
adamc@736	1214 if (ctx->client == NULL) {
adamc@736	1215 if (ctx->needs_sig) {
adamc@1094	1216 char *sig = ctx->app->cookie_sig(ctx);
adamc@736	1217 char *r = uw_malloc(ctx, strlen(sig) + 8);
adamc@736	1218 sprintf(r, "sig=\"%s\";", sig);
adamc@736	1219 return r;
adamc@736	1220 }
adamc@736	1221 else
adamc@736	1222 return "";
adamc@736	1223 } else {
adamc@1094	1224 char *sig = ctx->needs_sig ? ctx->app->cookie_sig(ctx) : "";
adamc@1094	1225 char r = uw_malloc(ctx, 59 + 3 INTS_MAX + strlen(ctx->app->url_prefix)
adamc@736	1226 + (ctx->needs_sig ? strlen(sig) + 7 : 0));
adamc@736	1227 sprintf(r, "client_id=%u;client_pass=%d;url_prefix=\"%s\";timeout=%d;%s%s%slistener();",
adamc@682	1228 ctx->client->id,
adamc@682	1229 ctx->client->pass,
adamc@1094	1230 ctx->app->url_prefix,
adamc@1094	1231 ctx->app->timeout,
adamc@736	1232 ctx->needs_sig ? "sig=\"" : "",
adamc@736	1233 sig,
adamc@736	1234 ctx->needs_sig ? "\";" : "");
adamc@679	1235 return r;
adamc@668	1236 }
adamc@667	1237 }
adamc@667	1238
adamc@574	1239 uw_Basis_string uw_Basis_jsifyString(uw_context ctx, uw_Basis_string s) {
adamc@574	1240 char r, s2;
adamc@574	1241
adamc@574	1242 uw_check_heap(ctx, strlen(s) * 4 + 2);
adamc@574	1243
adamc@666	1244 r = s2 = ctx->heap.front;
adamc@574	1245 *s2++ = '"';
adamc@574	1246
adamc@574	1247 for (; *s; s++) {
adamc@574	1248 char c = *s;
adamc@574	1249
adamc@574	1250 switch (c) {
adamc@574	1251 case '"':
adamc@574	1252 strcpy(s2, "\\\"");
adamc@574	1253 s2 += 2;
adamc@574	1254 break;
adamc@1027	1255 case '\'':
adamc@1027	1256 strcpy(s2, "\\047");
adamc@1027	1257 s2 += 4;
adamc@1027	1258 break;
adamc@574	1259 case '\\':
adamc@574	1260 strcpy(s2, "\\\\");
adamc@574	1261 s2 += 2;
adamc@574	1262 break;
adamc@574	1263 default:
adamc@574	1264 if (isprint(c))
adamc@574	1265 *s2++ = c;
adamc@574	1266 else {
adamc@574	1267 sprintf(s2, "\\%3o", c);
adamc@574	1268 s2 += 4;
adamc@574	1269 }
adamc@574	1270 }
adamc@574	1271 }
adamc@574	1272
adamc@574	1273 strcpy(s2, "\"");
adamc@910	1274 ctx->heap.front = s2 + 2;
adamc@574	1275 return r;
adamc@574	1276 }
adamc@574	1277
adamc@1025	1278 uw_Basis_string uw_Basis_jsifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1025	1279 char r, s2;
adamc@1025	1280
adamc@1025	1281 uw_check_heap(ctx, 6);
adamc@1025	1282
adamc@1025	1283 r = s2 = ctx->heap.front;
adamc@1025	1284 *s2++ = '"';
adamc@1025	1285
adamc@1025	1286 switch (c) {
adamc@1025	1287 case '"':
adamc@1025	1288 strcpy(s2, "\\\"");
adamc@1025	1289 s2 += 2;
adamc@1025	1290 break;
adamc@1027	1291 case '\'':
adamc@1027	1292 strcpy(s2, "\\047");
adamc@1027	1293 s2 += 4;
adamc@1027	1294 break;
adamc@1025	1295 case '\\':
adamc@1025	1296 strcpy(s2, "\\\\");
adamc@1025	1297 s2 += 2;
adamc@1025	1298 break;
adamc@1025	1299 default:
adamc@1025	1300 if (isprint(c))
adamc@1025	1301 *s2++ = c;
adamc@1025	1302 else {
adamc@1025	1303 sprintf(s2, "\\%3o", c);
adamc@1025	1304 s2 += 4;
adamc@1025	1305 }
adamc@1025	1306 }
adamc@1025	1307
adamc@1025	1308 strcpy(s2, "\"");
adamc@1025	1309 ctx->heap.front = s2 + 2;
adamc@1025	1310 return r;
adamc@1025	1311 }
adamc@1025	1312
adamc@574	1313 uw_Basis_string uw_Basis_jsifyString_ws(uw_context ctx, uw_Basis_string s) {
adamc@574	1314 char r, s2;
adamc@574	1315
adamc@574	1316 uw_check_script(ctx, strlen(s) * 4 + 2);
adamc@574	1317
adamc@666	1318 r = s2 = ctx->script.front;
adamc@574	1319 *s2++ = '"';
adamc@574	1320
adamc@574	1321 for (; *s; s++) {
adamc@574	1322 char c = *s;
adamc@574	1323
adamc@574	1324 switch (c) {
adamc@577	1325 case '\'':
adamc@1027	1326 strcpy(s2, "\\");
adamc@574	1327 s2 += 2;
adamc@574	1328 break;
adamc@574	1329 case '\\':
adamc@574	1330 strcpy(s2, "\\\\");
adamc@574	1331 s2 += 2;
adamc@574	1332 break;
adamc@574	1333 default:
adamc@574	1334 if (isprint(c))
adamc@574	1335 *s2++ = c;
adamc@574	1336 else {
adamc@574	1337 sprintf(s2, "\\%3o", c);
adamc@574	1338 s2 += 4;
adamc@574	1339 }
adamc@574	1340 }
adamc@574	1341 }
adamc@574	1342
adamc@574	1343 strcpy(s2, "\"");
adamc@666	1344 ctx->script.front = s2 + 1;
adamc@574	1345 return r;
adamc@574	1346 }
adamc@574	1347
adamc@682	1348 char *uw_Basis_jsifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1349 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1350 return "null";
adamc@682	1351 else {
adamc@682	1352 int len;
adamc@682	1353 char *r;
adamc@682	1354
adamc@682	1355 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1356 r = ctx->heap.front;
adamc@682	1357 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1358 ctx->heap.front += len+1;
adamc@682	1359 return r;
adamc@682	1360 }
adamc@682	1361 }
adamc@682	1362
adamc@577	1363 uw_Basis_int uw_Basis_new_client_source(uw_context ctx, uw_Basis_string s) {
adamc@577	1364 int len;
adamc@577	1365 size_t s_len = strlen(s);
adamc@562	1366
adamc@970	1367 uw_check_script(ctx, 18 + INTS_MAX + s_len);
adamc@970	1368 sprintf(ctx->script.front, "var s%d=sc(exec(%n", ctx->source_count, &len);
adamc@666	1369 ctx->script.front += len;
adamc@666	1370 strcpy(ctx->script.front, s);
adamc@666	1371 ctx->script.front += s_len;
adamc@970	1372 strcpy(ctx->script.front, "));");
adamc@972	1373 ctx->script.front += 3;
adamc@562	1374
adamc@565	1375 return ctx->source_count++;
adamc@117	1376 }
adamc@117	1377
adamc@577	1378 uw_unit uw_Basis_set_client_source(uw_context ctx, uw_Basis_int n, uw_Basis_string s) {
adamc@577	1379 int len;
adamc@577	1380 size_t s_len = strlen(s);
adamc@577	1381
adamc@970	1382 uw_check_script(ctx, 12 + INTS_MAX + s_len);
adamc@970	1383 sprintf(ctx->script.front, "sv(s%d,exec(%n", (int)n, &len);
adamc@666	1384 ctx->script.front += len;
adamc@666	1385 strcpy(ctx->script.front, s);
adamc@666	1386 ctx->script.front += s_len;
adamc@970	1387 strcpy(ctx->script.front, "));");
adamc@972	1388 ctx->script.front += 3;
adamc@577	1389
adamc@577	1390 return uw_unit_v;
adamc@577	1391 }
adamc@577	1392
adamc@311	1393 static void uw_check(uw_context ctx, size_t extra) {
adamc@667	1394 buf_check(&ctx->page, extra);
adamc@117	1395 }
adamc@117	1396
adamc@311	1397 static void uw_writec_unsafe(uw_context ctx, char c) {
adamc@666	1398 *(ctx->page.front)++ = c;
adamc@117	1399 }
adamc@117	1400
adamc@311	1401 void uw_writec(uw_context ctx, char c) {
adamc@311	1402 uw_check(ctx, 1);
adamc@311	1403 uw_writec_unsafe(ctx, c);
adamc@117	1404 }
adamc@117	1405
adamc@311	1406 static void uw_write_unsafe(uw_context ctx, const char* s) {
adamc@117	1407 int len = strlen(s);
adamc@666	1408 memcpy(ctx->page.front, s, len);
adamc@666	1409 ctx->page.front += len;
adamc@117	1410 }
adamc@117	1411
adamc@311	1412 void uw_write(uw_context ctx, const char* s) {
adamc@311	1413 uw_check(ctx, strlen(s) + 1);
adamc@311	1414 uw_write_unsafe(ctx, s);
adamc@666	1415 *ctx->page.front = 0;
adamc@102	1416 }
adamc@106	1417
adamc@311	1418 char *uw_Basis_attrifyInt(uw_context ctx, uw_Basis_int n) {
adamc@136	1419 char *result;
adamc@136	1420 int len;
adamc@311	1421 uw_check_heap(ctx, INTS_MAX);
adamc@666	1422 result = ctx->heap.front;
adamc@276	1423 sprintf(result, "%lld%n", n, &len);
adamc@666	1424 ctx->heap.front += len+1;
adamc@136	1425 return result;
adamc@106	1426 }
adamc@106	1427
adamc@311	1428 char *uw_Basis_attrifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@136	1429 char *result;
adamc@136	1430 int len;
adamc@311	1431 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1432 result = ctx->heap.front;
adamc@136	1433 sprintf(result, "%g%n", n, &len);
adamc@666	1434 ctx->heap.front += len+1;
adamc@136	1435 return result;
adamc@106	1436 }
adamc@106	1437
adamc@1054	1438 static int isCont(unsigned char ch) {
adamc@1054	1439 return ch / 64 == 2;
adamc@1054	1440 }
adamc@1054	1441
adamc@311	1442 char *uw_Basis_attrifyString(uw_context ctx, uw_Basis_string s) {
adamc@136	1443 int len = strlen(s);
adamc@136	1444 char result, p;
adamc@311	1445 uw_check_heap(ctx, len * 6 + 1);
adamc@136	1446
adamc@666	1447 result = p = ctx->heap.front;
adamc@136	1448
adamc@136	1449 for (; *s; s++) {
adamc@1054	1450 unsigned char c = *s;
adamc@136	1451
adamc@136	1452 if (c == '"') {
adamc@136	1453 strcpy(p, """);
adamc@136	1454 p += 6;
adamc@136	1455 } else if (c == '&') {
adamc@136	1456 strcpy(p, "&");
adamc@136	1457 p += 5;
adamc@136	1458 }
adamc@1059	1459 else
adamc@136	1460 *p++ = c;
adamc@136	1461 }
adamc@136	1462
adamc@137	1463 *p++ = 0;
adamc@666	1464 ctx->heap.front = p;
adamc@136	1465 return result;
adamc@106	1466 }
adamc@106	1467
adamc@1011	1468 char *uw_Basis_attrifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	1469 char result, p;
adamc@1011	1470 uw_check_heap(ctx, 7);
adamc@1011	1471
adamc@1011	1472 result = p = ctx->heap.front;
adamc@1011	1473
adamc@1011	1474 if (c == '"') {
adamc@1011	1475 strcpy(p, """);
adamc@1011	1476 p += 6;
adamc@1011	1477 } else if (c == '&') {
adamc@1011	1478 strcpy(p, "&");
adamc@1011	1479 p += 5;
adamc@1011	1480 }
adamc@1059	1481 else
adamc@1011	1482 *p++ = c;
adamc@1011	1483
adamc@1011	1484 *p++ = 0;
adamc@1011	1485 ctx->heap.front = p;
adamc@1011	1486 return result;
adamc@1011	1487 }
adamc@1011	1488
adamc@721	1489 char *uw_Basis_attrifyCss_class(uw_context ctx, uw_Basis_css_class s) {
adamc@721	1490 return s;
adamc@721	1491 }
adamc@721	1492
adamc@311	1493 static void uw_Basis_attrifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@117	1494 int len;
adamc@117	1495
adamc@666	1496 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1497 ctx->page.front += len;
adamc@106	1498 }
adamc@106	1499
adamc@428	1500 uw_unit uw_Basis_attrifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1501 uw_check(ctx, INTS_MAX);
adamc@311	1502 uw_Basis_attrifyInt_w_unsafe(ctx, n);
adamc@428	1503
adamc@428	1504 return uw_unit_v;
adamc@106	1505 }
adamc@106	1506
adamc@428	1507 uw_unit uw_Basis_attrifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@117	1508 int len;
adamc@117	1509
adamc@311	1510 uw_check(ctx, FLOATS_MAX);
adamc@666	1511 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1512 ctx->page.front += len;
adamc@428	1513
adamc@428	1514 return uw_unit_v;
adamc@117	1515 }
adamc@117	1516
adamc@428	1517 uw_unit uw_Basis_attrifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@311	1518 uw_check(ctx, strlen(s) * 6);
adamc@117	1519
adamc@106	1520 for (; *s; s++) {
adamc@1054	1521 unsigned char c = *s;
adamc@106	1522
adamc@106	1523 if (c == '"')
adamc@311	1524 uw_write_unsafe(ctx, """);
adamc@136	1525 else if (c == '&')
adamc@311	1526 uw_write_unsafe(ctx, "&");
adamc@1059	1527 else
adamc@311	1528 uw_writec_unsafe(ctx, c);
adamc@106	1529 }
adamc@428	1530
adamc@428	1531 return uw_unit_v;
adamc@106	1532 }
adamc@120	1533
adamc@1011	1534 uw_unit uw_Basis_attrifyChar_w(uw_context ctx, uw_Basis_char c) {
adamc@1011	1535 uw_check(ctx, 6);
adamc@1011	1536
adamc@1011	1537 if (c == '"')
adamc@1011	1538 uw_write_unsafe(ctx, """);
adamc@1011	1539 else if (c == '&')
adamc@1011	1540 uw_write_unsafe(ctx, "&");
adamc@1059	1541 else
adamc@1011	1542 uw_writec_unsafe(ctx, c);
adamc@1011	1543
adamc@1011	1544 return uw_unit_v;
adamc@1011	1545 }
adamc@1011	1546
adamc@120	1547
adamc@311	1548 char *uw_Basis_urlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@137	1549 int len;
adamc@137	1550 char *r;
adamc@137	1551
adamc@311	1552 uw_check_heap(ctx, INTS_MAX);
adamc@666	1553 r = ctx->heap.front;
adamc@276	1554 sprintf(r, "%lld%n", n, &len);
adamc@666	1555 ctx->heap.front += len+1;
adamc@137	1556 return r;
adamc@120	1557 }
adamc@120	1558
adamc@682	1559 char *uw_Basis_urlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1560 if (ctx->client == NULL \|\| chn.cli != ctx->client->id)
adamc@682	1561 return "";
adamc@682	1562 else {
adamc@682	1563 int len;
adamc@682	1564 char *r;
adamc@679	1565
adamc@682	1566 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	1567 r = ctx->heap.front;
adamc@682	1568 sprintf(r, "%u%n", chn.chn, &len);
adamc@682	1569 ctx->heap.front += len+1;
adamc@682	1570 return r;
adamc@682	1571 }
adamc@679	1572 }
adamc@679	1573
adamc@311	1574 char *uw_Basis_urlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@137	1575 int len;
adamc@137	1576 char *r;
adamc@137	1577
adamc@311	1578 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1579 r = ctx->heap.front;
adamc@137	1580 sprintf(r, "%g%n", n, &len);
adamc@666	1581 ctx->heap.front += len+1;
adamc@137	1582 return r;
adamc@120	1583 }
adamc@120	1584
adamc@311	1585 char *uw_Basis_urlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1586 char r, p;
adamc@137	1587
adamc@925	1588 if (s[0] == '\0')
adamc@925	1589 return "_";
adamc@925	1590
adamc@925	1591 uw_check_heap(ctx, strlen(s) * 3 + 1 + !!(s[0] == '_'));
adamc@925	1592
adamc@925	1593 r = p = ctx->heap.front;
adamc@925	1594 if (s[0] == '_')
adamc@925	1595 *p++ = '_';
adamc@925	1596
adamc@925	1597 for (; *s; s++) {
adamc@1087	1598 unsigned char c = *s;
adamc@137	1599
adamc@137	1600 if (c == ' ')
adamc@137	1601 *p++ = '+';
adamc@137	1602 else if (isalnum(c))
adamc@137	1603 *p++ = c;
adamc@137	1604 else {
adamc@137	1605 sprintf(p, "%%%02X", c);
adamc@137	1606 p += 3;
adamc@137	1607 }
adamc@137	1608 }
adamc@137	1609
adamc@137	1610 *p++ = 0;
adamc@666	1611 ctx->heap.front = p;
adamc@137	1612 return r;
adamc@120	1613 }
adamc@120	1614
adamc@311	1615 char *uw_Basis_urlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1616 if (b == uw_Basis_False)
adamc@186	1617 return "0";
adamc@186	1618 else
adamc@186	1619 return "1";
adamc@186	1620 }
adamc@186	1621
adamc@311	1622 static void uw_Basis_urlifyInt_w_unsafe(uw_context ctx, uw_Basis_int n) {
adamc@120	1623 int len;
adamc@120	1624
adamc@666	1625 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1626 ctx->page.front += len;
adamc@120	1627 }
adamc@120	1628
adamc@428	1629 uw_unit uw_Basis_urlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@311	1630 uw_check(ctx, INTS_MAX);
adamc@311	1631 uw_Basis_urlifyInt_w_unsafe(ctx, n);
adamc@428	1632
adamc@428	1633 return uw_unit_v;
adamc@120	1634 }
adamc@120	1635
adamc@682	1636 uw_unit uw_Basis_urlifyChannel_w(uw_context ctx, uw_Basis_channel chn) {
adamc@682	1637 if (ctx->client != NULL && chn.cli == ctx->client->id) {
adamc@682	1638 int len;
adamc@682	1639
adamc@682	1640 uw_check(ctx, INTS_MAX + 1);
adamc@682	1641 sprintf(ctx->page.front, "%u%n", chn.chn, &len);
adamc@682	1642 ctx->page.front += len;
adamc@682	1643 }
adamc@682	1644
adamc@679	1645 return uw_unit_v;
adamc@679	1646 }
adamc@679	1647
adamc@428	1648 uw_unit uw_Basis_urlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@120	1649 int len;
adamc@120	1650
adamc@311	1651 uw_check(ctx, FLOATS_MAX);
adamc@666	1652 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1653 ctx->page.front += len;
adamc@428	1654
adamc@428	1655 return uw_unit_v;
adamc@120	1656 }
adamc@120	1657
adamc@488	1658 uw_Basis_string uw_Basis_urlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@488	1659 return uw_Basis_urlifyInt(ctx, t);
adamc@488	1660 }
adamc@488	1661
adamc@428	1662 uw_unit uw_Basis_urlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@925	1663 if (s[0] == '\0') {
adamc@925	1664 uw_check(ctx, 1);
adamc@925	1665 uw_writec_unsafe(ctx, '_');
adamc@925	1666 return uw_unit_v;
adamc@925	1667 }
adamc@925	1668
adamc@925	1669 uw_check(ctx, strlen(s) * 3 + !!(s[0] == '_'));
adamc@925	1670
adamc@925	1671 if (s[0] == '_')
adamc@925	1672 uw_writec_unsafe(ctx, '_');
adamc@120	1673
adamc@120	1674 for (; *s; s++) {
adamc@1087	1675 unsigned char c = *s;
adamc@120	1676
adamc@120	1677 if (c == ' ')
adamc@311	1678 uw_writec_unsafe(ctx, '+');
adamc@120	1679 else if (isalnum(c))
adamc@311	1680 uw_writec_unsafe(ctx, c);
adamc@120	1681 else {
adamc@666	1682 sprintf(ctx->page.front, "%%%02X", c);
adamc@666	1683 ctx->page.front += 3;
adamc@120	1684 }
adamc@120	1685 }
adamc@428	1686
adamc@428	1687 return uw_unit_v;
adamc@120	1688 }
adamc@120	1689
adamc@428	1690 uw_unit uw_Basis_urlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1691 if (b == uw_Basis_False)
adamc@311	1692 uw_writec(ctx, '0');
adamc@186	1693 else
adamc@311	1694 uw_writec(ctx, '1');
adamc@428	1695
adamc@428	1696 return uw_unit_v;
adamc@186	1697 }
adamc@186	1698
adamc@120	1699
adamc@311	1700 static char uw_unurlify_advance(char s) {
adamc@144	1701 char *new_s = strchr(s, '/');
adamc@120	1702
adamc@120	1703 if (new_s)
adamc@120	1704 *new_s++ = 0;
adamc@120	1705 else
adamc@144	1706 new_s = strchr(s, 0);
adamc@144	1707
adamc@144	1708 return new_s;
adamc@144	1709 }
adamc@144	1710
adamc@311	1711 uw_Basis_int uw_Basis_unurlifyInt(uw_context ctx, char **s) {
adamc@311	1712 char new_s = uw_unurlify_advance(s);
adamc@311	1713 uw_Basis_int r;
adamc@120	1714
adamc@276	1715 r = atoll(*s);
adamc@120	1716 *s = new_s;
adamc@120	1717 return r;
adamc@120	1718 }
adamc@120	1719
adamc@311	1720 uw_Basis_float uw_Basis_unurlifyFloat(uw_context ctx, char **s) {
adamc@311	1721 char new_s = uw_unurlify_advance(s);
adamc@311	1722 uw_Basis_float r;
adamc@120	1723
adamc@120	1724 r = atof(*s);
adamc@120	1725 *s = new_s;
adamc@120	1726 return r;
adamc@120	1727 }
adamc@120	1728
adamc@488	1729 uw_Basis_time uw_Basis_unurlifyTime(uw_context ctx, char **s) {
adamc@488	1730 return uw_Basis_unurlifyInt(ctx, s);
adamc@488	1731 }
adamc@488	1732
adamc@1023	1733 static uw_Basis_string uw_unurlifyString_to(int fromClient, uw_context ctx, char r, char s) {
adamc@927	1734 char s1, s2 = s;
adamc@144	1735 int n;
adamc@136	1736
adamc@1023	1737 if (!fromClient) {
adamc@1023	1738 if (*s2 == '_')
adamc@1023	1739 ++s2;
adamc@1023	1740 else if (s2[0] == '%' && s2[1] == '5' && (s2[2] == 'f' \|\| s2[2] == 'F'))
adamc@1023	1741 s2 += 3;
adamc@1023	1742 }
adamc@925	1743
adamc@927	1744 for (s1 = r; *s2; ++s1, ++s2) {
adamc@1087	1745 unsigned char c = *s2;
adamc@136	1746
adamc@136	1747 switch (c) {
adamc@136	1748 case '+':
adamc@136	1749 *s1 = ' ';
adamc@136	1750 break;
adamc@136	1751 case '%':
adamc@169	1752 if (s2[1] == 0)
adamc@311	1753 uw_error(ctx, FATAL, "Missing first character of escaped URL byte");
adamc@169	1754 if (s2[2] == 0)
adamc@311	1755 uw_error(ctx, FATAL, "Missing second character of escaped URL byte");
adamc@169	1756 if (sscanf(s2+1, "%02X", &n) != 1)
adamc@311	1757 uw_error(ctx, FATAL, "Invalid escaped URL byte starting at: %s", s2);
adamc@136	1758 *s1 = n;
adamc@136	1759 s2 += 2;
adamc@136	1760 break;
adamc@136	1761 default:
adamc@136	1762 *s1 = c;
adamc@136	1763 }
adamc@136	1764 }
adamc@136	1765 *s1++ = 0;
adamc@144	1766 return s1;
adamc@144	1767 }
adamc@144	1768
adamc@311	1769 uw_Basis_bool uw_Basis_unurlifyBool(uw_context ctx, char **s) {
adamc@311	1770 char new_s = uw_unurlify_advance(s);
adamc@311	1771 uw_Basis_bool r;
adamc@186	1772
adamc@186	1773 if (s[0] == 0 \|\| !strcmp(s, "0") \|\| !strcmp(*s, "off"))
adamc@311	1774 r = uw_Basis_False;
adamc@186	1775 else
adamc@311	1776 r = uw_Basis_True;
adamc@186	1777
adamc@186	1778 *s = new_s;
adamc@186	1779 return r;
adamc@186	1780 }
adamc@186	1781
adamc@311	1782 uw_Basis_string uw_Basis_unurlifyString(uw_context ctx, char **s) {
adamc@311	1783 char new_s = uw_unurlify_advance(s);
adamc@144	1784 char r, s1, *s2;
adamc@144	1785 int len, n;
adamc@144	1786
adamc@200	1787 len = strlen(*s);
adamc@311	1788 uw_check_heap(ctx, len + 1);
adamc@144	1789
adamc@666	1790 r = ctx->heap.front;
adamc@1023	1791 ctx->heap.front = uw_unurlifyString_to(0, ctx, ctx->heap.front, *s);
adamc@1023	1792 *s = new_s;
adamc@1023	1793 return r;
adamc@1023	1794 }
adamc@1023	1795
adamc@1023	1796 uw_Basis_string uw_Basis_unurlifyString_fromClient(uw_context ctx, char **s) {
adamc@1023	1797 char new_s = uw_unurlify_advance(s);
adamc@1023	1798 char r, s1, *s2;
adamc@1023	1799 int len, n;
adamc@1023	1800
adamc@1023	1801 len = strlen(*s);
adamc@1023	1802 uw_check_heap(ctx, len + 1);
adamc@1023	1803
adamc@1023	1804 r = ctx->heap.front;
adamc@1023	1805 ctx->heap.front = uw_unurlifyString_to(1, ctx, ctx->heap.front, *s);
adamc@136	1806 *s = new_s;
adamc@136	1807 return r;
adamc@120	1808 }
adamc@135	1809
adamc@135	1810
adamc@311	1811 char *uw_Basis_htmlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@286	1812 int len;
adamc@286	1813 char *r;
adamc@286	1814
adamc@311	1815 uw_check_heap(ctx, INTS_MAX);
adamc@666	1816 r = ctx->heap.front;
adamc@286	1817 sprintf(r, "%lld%n", n, &len);
adamc@666	1818 ctx->heap.front += len+1;
adamc@286	1819 return r;
adamc@286	1820 }
adamc@286	1821
adamc@428	1822 uw_unit uw_Basis_htmlifyInt_w(uw_context ctx, uw_Basis_int n) {
adamc@286	1823 int len;
adamc@286	1824
adamc@311	1825 uw_check(ctx, INTS_MAX);
adamc@666	1826 sprintf(ctx->page.front, "%lld%n", n, &len);
adamc@666	1827 ctx->page.front += len;
adamc@428	1828
adamc@428	1829 return uw_unit_v;
adamc@286	1830 }
adamc@286	1831
adamc@311	1832 char *uw_Basis_htmlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@286	1833 int len;
adamc@286	1834 char *r;
adamc@286	1835
adamc@311	1836 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	1837 r = ctx->heap.front;
adamc@286	1838 sprintf(r, "%g%n", n, &len);
adamc@666	1839 ctx->heap.front += len+1;
adamc@286	1840 return r;
adamc@286	1841 }
adamc@286	1842
adamc@428	1843 uw_unit uw_Basis_htmlifyFloat_w(uw_context ctx, uw_Basis_float n) {
adamc@286	1844 int len;
adamc@286	1845
adamc@311	1846 uw_check(ctx, FLOATS_MAX);
adamc@666	1847 sprintf(ctx->page.front, "%g%n", n, &len);
adamc@666	1848 ctx->page.front += len;
adamc@428	1849
adamc@428	1850 return uw_unit_v;
adamc@286	1851 }
adamc@286	1852
adamc@311	1853 char *uw_Basis_htmlifyString(uw_context ctx, uw_Basis_string s) {
adamc@137	1854 char r, s2;
adamc@137	1855
adamc@311	1856 uw_check_heap(ctx, strlen(s) * 5 + 1);
adamc@137	1857
adamc@666	1858 for (r = s2 = ctx->heap.front; *s; s++) {
adamc@1054	1859 unsigned char c = *s;
adamc@137	1860
adamc@137	1861 switch (c) {
adamc@137	1862 case '<':
adamc@137	1863 strcpy(s2, "<");
adamc@137	1864 s2 += 4;
adamc@137	1865 break;
adamc@137	1866 case '&':
adamc@137	1867 strcpy(s2, "&");
adamc@137	1868 s2 += 5;
adamc@137	1869 break;
adamc@137	1870 default:
adamc@1059	1871 *s2++ = c;
adamc@137	1872 }
adamc@137	1873 }
adamc@137	1874
adamc@137	1875 *s2++ = 0;
adamc@666	1876 ctx->heap.front = s2;
adamc@137	1877 return r;
adamc@135	1878 }
adamc@135	1879
adamc@428	1880 uw_unit uw_Basis_htmlifyString_w(uw_context ctx, uw_Basis_string s) {
adamc@321	1881 uw_check(ctx, strlen(s) * 6);
adamc@135	1882
adamc@135	1883 for (; *s; s++) {
adamc@1054	1884 unsigned char c = *s;
adamc@135	1885
adamc@135	1886 switch (c) {
adamc@135	1887 case '<':
adamc@311	1888 uw_write_unsafe(ctx, "<");
adamc@135	1889 break;
adamc@135	1890 case '&':
adamc@311	1891 uw_write_unsafe(ctx, "&");
adamc@135	1892 break;
adamc@135	1893 default:
adamc@1059	1894 uw_writec_unsafe(ctx, c);
adamc@135	1895 }
adamc@135	1896 }
adamc@428	1897
adamc@428	1898 return uw_unit_v;
adamc@135	1899 }
adamc@180	1900
adamc@311	1901 uw_Basis_string uw_Basis_htmlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	1902 if (b == uw_Basis_False)
adamc@286	1903 return "False";
adamc@286	1904 else
adamc@286	1905 return "True";
adamc@286	1906 }
adamc@286	1907
adamc@428	1908 uw_unit uw_Basis_htmlifyBool_w(uw_context ctx, uw_Basis_bool b) {
adamc@311	1909 if (b == uw_Basis_False) {
adamc@311	1910 uw_check(ctx, 6);
adamc@666	1911 strcpy(ctx->page.front, "False");
adamc@666	1912 ctx->page.front += 5;
adamc@286	1913 } else {
adamc@311	1914 uw_check(ctx, 5);
adamc@666	1915 strcpy(ctx->page.front, "True");
adamc@666	1916 ctx->page.front += 4;
adamc@286	1917 }
adamc@428	1918
adamc@428	1919 return uw_unit_v;
adamc@286	1920 }
adamc@286	1921
adamc@436	1922 #define TIME_FMT "%x %X"
adamc@438	1923 #define TIME_FMT_PG "%Y-%m-%d %T"
adamc@436	1924
adamc@436	1925 uw_Basis_string uw_Basis_htmlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@436	1926 size_t len;
adamc@436	1927 char *r;
adamc@436	1928 struct tm stm;
adamc@436	1929
adamc@436	1930 if (localtime_r(&t, &stm)) {
adamc@436	1931 uw_check_heap(ctx, TIMES_MAX);
adamc@666	1932 r = ctx->heap.front;
adamc@436	1933 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1934 ctx->heap.front += len+1;
adamc@436	1935 return r;
adamc@436	1936 } else
adamc@436	1937 return "<i>Invalid time</i>";
adamc@436	1938 }
adamc@436	1939
adamc@436	1940 uw_unit uw_Basis_htmlifyTime_w(uw_context ctx, uw_Basis_time t) {
adamc@436	1941 size_t len;
adamc@436	1942 char *r;
adamc@436	1943 struct tm stm;
adamc@436	1944
adamc@436	1945 if (localtime_r(&t, &stm)) {
adamc@436	1946 uw_check(ctx, TIMES_MAX);
adamc@666	1947 r = ctx->page.front;
adamc@436	1948 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	1949 ctx->page.front += len;
adamc@436	1950 } else {
adamc@436	1951 uw_check(ctx, 20);
adamc@666	1952 strcpy(ctx->page.front, "<i>Invalid time</i>");
adamc@666	1953 ctx->page.front += 19;
adamc@436	1954 }
adamc@436	1955
adamc@436	1956 return uw_unit_v;
adamc@436	1957 }
adamc@436	1958
adamc@821	1959 uw_Basis_char uw_Basis_strsub(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1960 if (n >= 0 && n < strlen(s))
adamc@821	1961 return s[n];
adamc@821	1962 else
adamc@821	1963 uw_error(ctx, FATAL, "Out-of-bounds strsub");
adamc@821	1964 }
adamc@821	1965
adamc@821	1966 uw_Basis_string uw_Basis_strsuffix(uw_context ctx, uw_Basis_string s, uw_Basis_int n) {
adamc@821	1967 if (n >= 0 && n < strlen(s))
adamc@821	1968 return &s[n];
adamc@821	1969 else
adamc@821	1970 uw_error(ctx, FATAL, "Out-of-bounds strsuffix");
adamc@821	1971 }
adamc@821	1972
adamc@828	1973 uw_Basis_int uw_Basis_strlen(uw_context ctx, uw_Basis_string s) {
adamc@828	1974 return strlen(s);
adamc@828	1975 }
adamc@828	1976
adamc@829	1977 uw_Basis_string uw_Basis_strchr(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1978 return strchr(s, ch);
adamc@829	1979 }
adamc@829	1980
adamc@831	1981 uw_Basis_int uw_Basis_strcspn(uw_context ctx, uw_Basis_string s, uw_Basis_string chs) {
adamc@831	1982 return strcspn(s, chs);
adamc@831	1983 }
adamc@831	1984
adamc@829	1985 uw_Basis_int *uw_Basis_strindex(uw_context ctx, uw_Basis_string s, uw_Basis_char ch) {
adamc@829	1986 uw_Basis_string r = strchr(s, ch);
adamc@829	1987 if (r == NULL)
adamc@829	1988 return NULL;
adamc@829	1989 else {
adamc@829	1990 uw_Basis_int *nr = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@829	1991 *nr = r - s;
adamc@829	1992 return nr;
adamc@829	1993 }
adamc@829	1994 }
adamc@829	1995
adamc@311	1996 uw_Basis_string uw_Basis_strcat(uw_context ctx, uw_Basis_string s1, uw_Basis_string s2) {
adamc@828	1997 int len = uw_Basis_strlen(ctx, s1) + uw_Basis_strlen(ctx, s2) + 1;
adamc@180	1998 char *s;
adamc@180	1999
adamc@311	2000 uw_check_heap(ctx, len);
adamc@180	2001
adamc@666	2002 s = ctx->heap.front;
adamc@180	2003
adamc@180	2004 strcpy(s, s1);
adamc@180	2005 strcat(s, s2);
adamc@666	2006 ctx->heap.front += len;
adamc@180	2007
adamc@180	2008 return s;
adamc@180	2009 }
adamc@278	2010
adamc@829	2011 uw_Basis_string uw_Basis_substring(uw_context ctx, uw_Basis_string s, uw_Basis_int start, uw_Basis_int len) {
adamc@829	2012 size_t full_len = uw_Basis_strlen(ctx, s);
adamc@829	2013
adamc@829	2014 if (start < 0)
adamc@829	2015 uw_error(ctx, FATAL, "substring: Negative start index");
adamc@829	2016 if (len < 0)
adamc@829	2017 uw_error(ctx, FATAL, "substring: Negative length");
adamc@829	2018 if (start + len > full_len)
adamc@829	2019 uw_error(ctx, FATAL, "substring: Start index plus length is too large");
adamc@829	2020
adamc@829	2021 if (start + len == full_len)
adamc@829	2022 return &s[start];
adamc@829	2023 else {
adamc@829	2024 uw_Basis_string r = uw_malloc(ctx, len+1);
adamc@959	2025 memcpy(r, s+start, len);
adamc@829	2026 r[len] = 0;
adamc@829	2027 return r;
adamc@829	2028 }
adamc@829	2029
adamc@829	2030 }
adamc@829	2031
adamc@1023	2032 uw_Basis_string uw_Basis_str1(uw_context ctx, uw_Basis_char ch) {
adamc@1023	2033 char *r;
adamc@1023	2034
adamc@1023	2035 uw_check_heap(ctx, 2);
adamc@1023	2036 r = ctx->heap.front;
adamc@1023	2037 r[0] = ch;
adamc@1023	2038 r[1] = 0;
adamc@1023	2039
adamc@1023	2040 ctx->heap.front += 2;
adamc@1023	2041
adamc@1023	2042 return r;
adamc@1023	2043 }
adamc@1023	2044
adamc@737	2045 uw_Basis_string uw_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@828	2046 int len = uw_Basis_strlen(ctx, s1) + 1;
adamc@278	2047 char *s;
adamc@278	2048
adamc@311	2049 uw_check_heap(ctx, len);
adamc@278	2050
adamc@666	2051 s = ctx->heap.front;
adamc@278	2052
adamc@278	2053 strcpy(s, s1);
adamc@666	2054 ctx->heap.front += len;
adamc@278	2055
adamc@278	2056 return s;
adamc@278	2057 }
adamc@280	2058
adamc@737	2059 uw_Basis_string uw_maybe_strdup(uw_context ctx, uw_Basis_string s1) {
adamc@493	2060 if (s1)
adamc@737	2061 return uw_strdup(ctx, s1);
adamc@493	2062 else
adamc@493	2063 return NULL;
adamc@493	2064 }
adamc@493	2065
adamc@742	2066 char uw_memdup(uw_context ctx, const char p, size_t len) {
adamc@742	2067 char *r = uw_malloc(ctx, len);
adamc@742	2068 memcpy(r, p, len);
adamc@742	2069 return r;
adamc@742	2070 }
adamc@280	2071
adamc@879	2072 char *uw_sqlfmtInt = "%lld::int8%n";
adamc@879	2073
adamc@311	2074 char *uw_Basis_sqlifyInt(uw_context ctx, uw_Basis_int n) {
adamc@281	2075 int len;
adamc@281	2076 char *r;
adamc@281	2077
adamc@311	2078 uw_check_heap(ctx, INTS_MAX + 6);
adamc@666	2079 r = ctx->heap.front;
adamc@879	2080 sprintf(r, uw_sqlfmtInt, n, &len);
adamc@666	2081 ctx->heap.front += len+1;
adamc@281	2082 return r;
adamc@281	2083 }
adamc@281	2084
adamc@467	2085 char uw_Basis_sqlifyIntN(uw_context ctx, uw_Basis_int n) {
adamc@467	2086 if (n == NULL)
adamc@467	2087 return "NULL";
adamc@467	2088 else
adamc@467	2089 return uw_Basis_sqlifyInt(ctx, *n);
adamc@467	2090 }
adamc@467	2091
adamc@879	2092 char *uw_sqlfmtFloat = "%g::float8%n";
adamc@879	2093
adamc@311	2094 char *uw_Basis_sqlifyFloat(uw_context ctx, uw_Basis_float n) {
adamc@281	2095 int len;
adamc@281	2096 char *r;
adamc@281	2097
adamc@311	2098 uw_check_heap(ctx, FLOATS_MAX + 8);
adamc@666	2099 r = ctx->heap.front;
adamc@879	2100 sprintf(r, uw_sqlfmtFloat, n, &len);
adamc@666	2101 ctx->heap.front += len+1;
adamc@281	2102 return r;
adamc@281	2103 }
adamc@281	2104
adamc@467	2105 char uw_Basis_sqlifyFloatN(uw_context ctx, uw_Basis_float n) {
adamc@467	2106 if (n == NULL)
adamc@467	2107 return "NULL";
adamc@467	2108 else
adamc@467	2109 return uw_Basis_sqlifyFloat(ctx, *n);
adamc@467	2110 }
adamc@467	2111
adamc@879	2112 int uw_Estrings = 1;
adamc@879	2113 char *uw_sqlsuffixString = "::text";
adamc@1011	2114 char *uw_sqlsuffixChar = "::char";
adamc@281	2115
adamc@311	2116 uw_Basis_string uw_Basis_sqlifyString(uw_context ctx, uw_Basis_string s) {
adamc@280	2117 char r, s2;
adamc@280	2118
adamc@879	2119 uw_check_heap(ctx, strlen(s) * 2 + 3 + uw_Estrings + strlen(uw_sqlsuffixString));
adamc@280	2120
adamc@666	2121 r = s2 = ctx->heap.front;
adamc@879	2122 if (uw_Estrings)
adamc@879	2123 *s2++ = 'E';
adamc@280	2124 *s2++ = '\'';
adamc@280	2125
adamc@280	2126 for (; *s; s++) {
adamc@280	2127 char c = *s;
adamc@280	2128
adamc@280	2129 switch (c) {
adamc@280	2130 case '\'':
adamc@885	2131 if (uw_Estrings)
adamc@885	2132 strcpy(s2, "\\'");
adamc@885	2133 else
adamc@885	2134 strcpy(s2, "''");
adamc@280	2135 s2 += 2;
adamc@280	2136 break;
adamc@280	2137 case '\\':
adamc@885	2138 if (uw_Estrings) {
adamc@885	2139 strcpy(s2, "\\\\");
adamc@885	2140 s2 += 2;
adamc@885	2141 } else
adamc@885	2142 *s2++ = '\\';
adamc@280	2143 break;
adamc@280	2144 default:
adamc@280	2145 if (isprint(c))
adamc@280	2146 *s2++ = c;
adamc@879	2147 else if (uw_Estrings) {
adamc@737	2148 sprintf(s2, "\\%03o", c);
adamc@280	2149 s2 += 4;
adamc@280	2150 }
adamc@879	2151 else
adamc@879	2152 uw_error(ctx, FATAL, "Non-printable character %u in string to SQLify", c);
adamc@280	2153 }
adamc@280	2154 }
adamc@280	2155
adamc@879	2156 *s2++ = '\'';
adamc@879	2157 strcpy(s2, uw_sqlsuffixString);
adamc@879	2158 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixString);
adamc@280	2159 return r;
adamc@280	2160 }
adamc@281	2161
adamc@1011	2162 uw_Basis_string uw_Basis_sqlifyChar(uw_context ctx, uw_Basis_char c) {
adamc@1011	2163 char r, s2;
adamc@1011	2164
adamc@1011	2165 uw_check_heap(ctx, 5 + uw_Estrings + strlen(uw_sqlsuffixChar));
adamc@1011	2166
adamc@1011	2167 r = s2 = ctx->heap.front;
adamc@1011	2168 if (uw_Estrings)
adamc@1011	2169 *s2++ = 'E';
adamc@1011	2170 *s2++ = '\'';
adamc@1011	2171
adamc@1011	2172 switch (c) {
adamc@1011	2173 case '\'':
adamc@1011	2174 if (uw_Estrings)
adamc@1011	2175 strcpy(s2, "\\'");
adamc@1011	2176 else
adamc@1011	2177 strcpy(s2, "''");
adamc@1011	2178 s2 += 2;
adamc@1011	2179 break;
adamc@1011	2180 case '\\':
adamc@1011	2181 if (uw_Estrings) {
adamc@1011	2182 strcpy(s2, "\\\\");
adamc@1011	2183 s2 += 2;
adamc@1011	2184 } else
adamc@1011	2185 *s2++ = '\\';
adamc@1011	2186 break;
adamc@1011	2187 default:
adamc@1011	2188 if (isprint(c))
adamc@1011	2189 *s2++ = c;
adamc@1011	2190 else if (uw_Estrings) {
adamc@1011	2191 sprintf(s2, "\\%03o", c);
adamc@1011	2192 s2 += 4;
adamc@1011	2193 }
adamc@1011	2194 else
adamc@1011	2195 uw_error(ctx, FATAL, "Non-printable character %u in char to SQLify", c);
adamc@1011	2196 }
adamc@1011	2197
adamc@1011	2198 *s2++ = '\'';
adamc@1011	2199 strcpy(s2, uw_sqlsuffixChar);
adamc@1011	2200 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixChar);
adamc@1011	2201 return r;
adamc@1011	2202 }
adamc@1011	2203
adamc@879	2204 char *uw_sqlsuffixBlob = "::bytea";
adamc@879	2205
adamc@737	2206 uw_Basis_string uw_Basis_sqlifyBlob(uw_context ctx, uw_Basis_blob b) {
adamc@737	2207 char r, s2;
adamc@737	2208 size_t i;
adamc@737	2209
adamc@879	2210 uw_check_heap(ctx, b.size * 5 + 3 + uw_Estrings + strlen(uw_sqlsuffixBlob));
adamc@737	2211
adamc@737	2212 r = s2 = ctx->heap.front;
adamc@879	2213 if (uw_Estrings)
adamc@879	2214 *s2++ = 'E';
adamc@737	2215 *s2++ = '\'';
adamc@737	2216
adamc@737	2217 for (i = 0; i < b.size; ++i) {
adamc@737	2218 char c = b.data[i];
adamc@737	2219
adamc@737	2220 switch (c) {
adamc@737	2221 case '\'':
adamc@885	2222 if (uw_Estrings)
adamc@885	2223 strcpy(s2, "\\'");
adamc@885	2224 else
adamc@885	2225 strcpy(s2, "''");
adamc@737	2226 s2 += 2;
adamc@737	2227 break;
adamc@737	2228 case '\\':
adamc@885	2229 if (uw_Estrings) {
adamc@885	2230 strcpy(s2, "\\\\\\\\");
adamc@885	2231 s2 += 4;
adamc@885	2232 } else
adamc@885	2233 *s2++ = '\\';
adamc@737	2234 break;
adamc@737	2235 default:
adamc@737	2236 if (isprint(c))
adamc@737	2237 *s2++ = c;
adamc@879	2238 else if (uw_Estrings) {
adamc@737	2239 sprintf(s2, "\\\\%03o", c);
adamc@737	2240 s2 += 5;
adamc@737	2241 }
adamc@879	2242 else
adamc@879	2243 uw_error(ctx, FATAL, "Non-printable character %u in blob to SQLify", c);
adamc@737	2244 }
adamc@737	2245 }
adamc@737	2246
adamc@879	2247 *s2++ = '\'';
adamc@879	2248 strcpy(s2, uw_sqlsuffixBlob);
adamc@879	2249 ctx->heap.front = s2 + 1 + strlen(uw_sqlsuffixBlob);
adamc@737	2250 return r;
adamc@737	2251 }
adamc@737	2252
adamc@682	2253 char *uw_Basis_sqlifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2254 int len;
adamc@682	2255 char *r;
adamc@682	2256 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2257
adamc@682	2258 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2259 r = ctx->heap.front;
adamc@879	2260 sprintf(r, uw_sqlfmtInt, combo, &len);
adamc@682	2261 ctx->heap.front += len+1;
adamc@682	2262 return r;
adamc@682	2263 }
adamc@682	2264
adamc@682	2265 char *uw_Basis_attrifyChannel(uw_context ctx, uw_Basis_channel chn) {
adamc@682	2266 int len;
adamc@682	2267 char *r;
adamc@682	2268 unsigned long long combo = ((unsigned long long)chn.cli << 32) \| chn.chn;
adamc@682	2269
adamc@682	2270 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2271 r = ctx->heap.front;
adamc@682	2272 sprintf(r, "%lld%n", combo, &len);
adamc@682	2273 ctx->heap.front += len+1;
adamc@682	2274 return r;
adamc@682	2275 }
adamc@682	2276
adamc@879	2277 char *uw_sqlfmtUint4 = "%u::int4%n";
adamc@879	2278
adamc@682	2279 char *uw_Basis_sqlifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2280 int len;
adamc@682	2281 char *r;
adamc@682	2282
adamc@682	2283 uw_check_heap(ctx, INTS_MAX + 7);
adamc@682	2284 r = ctx->heap.front;
adamc@879	2285 sprintf(r, uw_sqlfmtUint4, cli, &len);
adamc@682	2286 ctx->heap.front += len+1;
adamc@682	2287 return r;
adamc@682	2288 }
adamc@682	2289
adamc@682	2290 char *uw_Basis_attrifyClient(uw_context ctx, uw_Basis_client cli) {
adamc@682	2291 int len;
adamc@682	2292 char *r;
adamc@682	2293
adamc@682	2294 uw_check_heap(ctx, INTS_MAX + 1);
adamc@682	2295 r = ctx->heap.front;
adamc@682	2296 sprintf(r, "%u%n", cli, &len);
adamc@682	2297 ctx->heap.front += len+1;
adamc@682	2298 return r;
adamc@682	2299 }
adamc@682	2300
adamc@467	2301 uw_Basis_string uw_Basis_sqlifyStringN(uw_context ctx, uw_Basis_string s) {
adamc@467	2302 if (s == NULL)
adamc@467	2303 return "NULL";
adamc@467	2304 else
adamc@467	2305 return uw_Basis_sqlifyString(ctx, s);
adamc@467	2306 }
adamc@467	2307
adamc@311	2308 char *uw_Basis_sqlifyBool(uw_context ctx, uw_Basis_bool b) {
adamc@311	2309 if (b == uw_Basis_False)
adamc@281	2310 return "FALSE";
adamc@281	2311 else
adamc@281	2312 return "TRUE";
adamc@281	2313 }
adamc@282	2314
adamc@467	2315 char uw_Basis_sqlifyBoolN(uw_context ctx, uw_Basis_bool b) {
adamc@467	2316 if (b == NULL)
adamc@467	2317 return "NULL";
adamc@467	2318 else
adamc@467	2319 return uw_Basis_sqlifyBool(ctx, *b);
adamc@467	2320 }
adamc@467	2321
adamc@439	2322 char *uw_Basis_sqlifyTime(uw_context ctx, uw_Basis_time t) {
adamc@439	2323 size_t len;
adamc@682	2324 char r, s;
adamc@682	2325 struct tm stm;
adamc@682	2326
adamc@682	2327 if (localtime_r(&t, &stm)) {
adamc@682	2328 s = uw_malloc(ctx, TIMES_MAX);
adamc@995	2329 --stm.tm_hour;
adamc@682	2330 len = strftime(s, TIMES_MAX, TIME_FMT, &stm);
adamc@682	2331 r = uw_malloc(ctx, len + 14);
adamc@682	2332 sprintf(r, "'%s'::timestamp", s);
adamc@682	2333 return r;
adamc@682	2334 } else
adamc@682	2335 return "<Invalid time>";
adamc@682	2336 }
adamc@682	2337
adamc@682	2338 char *uw_Basis_attrifyTime(uw_context ctx, uw_Basis_time t) {
adamc@682	2339 size_t len;
adamc@439	2340 char *r;
adamc@439	2341 struct tm stm;
adamc@439	2342
adamc@439	2343 if (localtime_r(&t, &stm)) {
adamc@439	2344 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2345 r = ctx->heap.front;
adamc@439	2346 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2347 ctx->heap.front += len+1;
adamc@439	2348 return r;
adamc@439	2349 } else
adamc@439	2350 return "<Invalid time>";
adamc@439	2351 }
adamc@439	2352
adamc@467	2353 char uw_Basis_sqlifyTimeN(uw_context ctx, uw_Basis_time t) {
adamc@467	2354 if (t == NULL)
adamc@467	2355 return "NULL";
adamc@467	2356 else
adamc@467	2357 return uw_Basis_sqlifyTime(ctx, *t);
adamc@467	2358 }
adamc@467	2359
adamc@311	2360 char *uw_Basis_ensqlBool(uw_Basis_bool b) {
adamc@311	2361 static uw_Basis_int true = 1;
adamc@311	2362 static uw_Basis_int false = 0;
adamc@282	2363
adamc@311	2364 if (b == uw_Basis_False)
adamc@282	2365 return (char *)&false;
adamc@282	2366 else
adamc@282	2367 return (char *)&true;
adamc@282	2368 }
adamc@284	2369
adamc@311	2370 uw_Basis_string uw_Basis_intToString(uw_context ctx, uw_Basis_int n) {
adamc@284	2371 int len;
adamc@284	2372 char *r;
adamc@284	2373
adamc@311	2374 uw_check_heap(ctx, INTS_MAX);
adamc@666	2375 r = ctx->heap.front;
adamc@284	2376 sprintf(r, "%lld%n", n, &len);
adamc@666	2377 ctx->heap.front += len+1;
adamc@284	2378 return r;
adamc@284	2379 }
adamc@285	2380
adamc@311	2381 uw_Basis_string uw_Basis_floatToString(uw_context ctx, uw_Basis_float n) {
adamc@285	2382 int len;
adamc@285	2383 char *r;
adamc@285	2384
adamc@311	2385 uw_check_heap(ctx, FLOATS_MAX);
adamc@666	2386 r = ctx->heap.front;
adamc@285	2387 sprintf(r, "%g%n", n, &len);
adamc@666	2388 ctx->heap.front += len+1;
adamc@285	2389 return r;
adamc@285	2390 }
adamc@285	2391
adamc@821	2392 uw_Basis_string uw_Basis_charToString(uw_context ctx, uw_Basis_char ch) {
adamc@821	2393 char *r = uw_malloc(ctx, 2);
adamc@821	2394 r[0] = ch;
adamc@821	2395 r[1] = 0;
adamc@821	2396 return r;
adamc@821	2397 }
adamc@821	2398
adamc@311	2399 uw_Basis_string uw_Basis_boolToString(uw_context ctx, uw_Basis_bool b) {
adamc@311	2400 if (b == uw_Basis_False)
adamc@285	2401 return "False";
adamc@285	2402 else
adamc@285	2403 return "True";
adamc@285	2404 }
adamc@288	2405
adamc@436	2406 uw_Basis_string uw_Basis_timeToString(uw_context ctx, uw_Basis_time t) {
adamc@436	2407 size_t len;
adamc@436	2408 char *r;
adamc@436	2409 struct tm stm;
adamc@436	2410
adamc@436	2411 if (localtime_r(&t, &stm)) {
adamc@436	2412 uw_check_heap(ctx, TIMES_MAX);
adamc@666	2413 r = ctx->heap.front;
adamc@436	2414 len = strftime(r, TIMES_MAX, TIME_FMT, &stm);
adamc@666	2415 ctx->heap.front += len+1;
adamc@436	2416 return r;
adamc@436	2417 } else
adamc@436	2418 return "<Invalid time>";
adamc@436	2419 }
adamc@288	2420
adamc@311	2421 uw_Basis_int *uw_Basis_stringToInt(uw_context ctx, uw_Basis_string s) {
adamc@288	2422 char *endptr;
adamc@311	2423 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@288	2424
adamc@288	2425 if (s != '\0' && endptr == '\0') {
adamc@311	2426 uw_Basis_int *r = uw_malloc(ctx, sizeof(uw_Basis_int));
adamc@288	2427 *r = n;
adamc@288	2428 return r;
adamc@288	2429 } else
adamc@288	2430 return NULL;
adamc@288	2431 }
adamc@289	2432
adamc@311	2433 uw_Basis_float *uw_Basis_stringToFloat(uw_context ctx, uw_Basis_string s) {
adamc@289	2434 char *endptr;
adamc@311	2435 uw_Basis_float n = strtod(s, &endptr);
adamc@289	2436
adamc@289	2437 if (s != '\0' && endptr == '\0') {
adamc@311	2438 uw_Basis_float *r = uw_malloc(ctx, sizeof(uw_Basis_float));
adamc@289	2439 *r = n;
adamc@289	2440 return r;
adamc@289	2441 } else
adamc@289	2442 return NULL;
adamc@289	2443 }
adamc@289	2444
adamc@821	2445 uw_Basis_char *uw_Basis_stringToChar(uw_context ctx, uw_Basis_string s) {
adamc@821	2446 if (s[0] == 0) {
adamc@821	2447 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2448 r[0] = 0;
adamc@821	2449 return r;
adamc@821	2450 } else if (s[1] != 0)
adamc@821	2451 return NULL;
adamc@821	2452 else {
adamc@821	2453 uw_Basis_char *r = uw_malloc(ctx, 1);
adamc@821	2454 r[0] = s[0];
adamc@821	2455 return r;
adamc@821	2456 }
adamc@821	2457 }
adamc@821	2458
adamc@311	2459 uw_Basis_bool *uw_Basis_stringToBool(uw_context ctx, uw_Basis_string s) {
adamc@311	2460 static uw_Basis_bool true = uw_Basis_True;
adamc@311	2461 static uw_Basis_bool false = uw_Basis_False;
adamc@289	2462
adamc@289	2463 if (!strcasecmp (s, "True"))
adamc@289	2464 return &true;
adamc@289	2465 else if (!strcasecmp (s, "False"))
adamc@289	2466 return &false;
adamc@289	2467 else
adamc@289	2468 return NULL;
adamc@289	2469 }
adamc@292	2470
adamc@436	2471 uw_Basis_time *uw_Basis_stringToTime(uw_context ctx, uw_Basis_string s) {
adamc@438	2472 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2473 struct tm stm;
adamc@436	2474
adamc@439	2475 if (dot) {
adamc@439	2476 *dot = 0;
adamc@439	2477 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2478 *dot = '.';
adamc@439	2479 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2480 *r = mktime(&stm);
adamc@439	2481 return r;
adamc@439	2482 }
adamc@439	2483 else {
adamc@439	2484 *dot = '.';
adamc@439	2485 return NULL;
adamc@439	2486 }
adamc@436	2487 }
adamc@439	2488 else {
adamc@439	2489 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@439	2490 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2491 *r = mktime(&stm);
adamc@439	2492 return r;
adamc@439	2493 }
adamc@439	2494 else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@439	2495 uw_Basis_time *r = uw_malloc(ctx, sizeof(uw_Basis_time));
adamc@439	2496 *r = mktime(&stm);
adamc@439	2497 return r;
adamc@439	2498 }
adamc@439	2499 else
adamc@439	2500 return NULL;
adamc@439	2501 }
adamc@436	2502 }
adamc@436	2503
adamc@311	2504 uw_Basis_int uw_Basis_stringToInt_error(uw_context ctx, uw_Basis_string s) {
adamc@292	2505 char *endptr;
adamc@311	2506 uw_Basis_int n = strtoll(s, &endptr, 10);
adamc@292	2507
adamc@292	2508 if (s != '\0' && endptr == '\0')
adamc@292	2509 return n;
adamc@292	2510 else
adamc@311	2511 uw_error(ctx, FATAL, "Can't parse int: %s", s);
adamc@292	2512 }
adamc@293	2513
adamc@682	2514 #include <errno.h>
adamc@682	2515
adamc@678	2516 uw_Basis_channel uw_Basis_stringToChannel_error(uw_context ctx, uw_Basis_string s) {
adamc@682	2517 unsigned long long n;
adamc@682	2518
adamc@682	2519 if (sscanf(s, "%llu", &n) < 1)
adamc@682	2520 uw_error(ctx, FATAL, "Can't parse channel: %s", s);
adamc@682	2521 else {
adamc@682	2522 uw_Basis_channel ch = {n >> 32, n & ((1ull << 32) - 1)};
adamc@682	2523 return ch;
adamc@682	2524 }
adamc@682	2525 }
adamc@682	2526
adamc@682	2527 uw_Basis_client uw_Basis_stringToClient_error(uw_context ctx, uw_Basis_string s) {
adamc@678	2528 char *endptr;
adamc@682	2529 unsigned long n = strtoul(s, &endptr, 10);
adamc@678	2530
adamc@678	2531 if (s != '\0' && endptr == '\0')
adamc@678	2532 return n;
adamc@678	2533 else
adamc@682	2534 uw_error(ctx, FATAL, "Can't parse client: %s", s);
adamc@678	2535 }
adamc@678	2536
adamc@311	2537 uw_Basis_float uw_Basis_stringToFloat_error(uw_context ctx, uw_Basis_string s) {
adamc@293	2538 char *endptr;
adamc@311	2539 uw_Basis_float n = strtod(s, &endptr);
adamc@293	2540
adamc@293	2541 if (s != '\0' && endptr == '\0')
adamc@293	2542 return n;
adamc@293	2543 else
adamc@311	2544 uw_error(ctx, FATAL, "Can't parse float: %s", s);
adamc@293	2545 }
adamc@293	2546
adamc@821	2547 uw_Basis_char uw_Basis_stringToChar_error(uw_context ctx, uw_Basis_string s) {
adamc@821	2548 if (s[0] == 0)
adamc@821	2549 return 0;
adamc@821	2550 else if (s[1] != 0)
adamc@821	2551 uw_error(ctx, FATAL, "Can't parse char: %s", s);
adamc@821	2552 else
adamc@821	2553 return s[0];
adamc@821	2554 }
adamc@821	2555
adamc@311	2556 uw_Basis_bool uw_Basis_stringToBool_error(uw_context ctx, uw_Basis_string s) {
adamc@296	2557 if (!strcasecmp(s, "T") \|\| !strcasecmp (s, "True"))
adamc@311	2558 return uw_Basis_True;
adamc@296	2559 else if (!strcasecmp(s, "F") \|\| !strcasecmp (s, "False"))
adamc@311	2560 return uw_Basis_False;
adamc@293	2561 else
adamc@311	2562 uw_error(ctx, FATAL, "Can't parse bool: %s", s);
adamc@293	2563 }
adamc@436	2564
adamc@436	2565 uw_Basis_time uw_Basis_stringToTime_error(uw_context ctx, uw_Basis_string s) {
adamc@438	2566 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@436	2567 struct tm stm = {};
adamc@436	2568
adamc@438	2569 if (dot) {
adamc@438	2570 *dot = 0;
adamc@438	2571 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@438	2572 *dot = '.';
adamc@438	2573 return mktime(&stm);
adamc@438	2574 }
adamc@438	2575 else {
adamc@438	2576 *dot = '.';
adamc@438	2577 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2578 }
adamc@438	2579 }
adamc@438	2580 else {
adamc@439	2581 if (strptime(s, TIME_FMT_PG, &stm) == end)
adamc@439	2582 return mktime(&stm);
adamc@439	2583 else if (strptime(s, TIME_FMT, &stm) == end)
adamc@438	2584 return mktime(&stm);
adamc@438	2585 else
adamc@438	2586 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@438	2587 }
adamc@436	2588 }
adamc@457	2589
adamc@939	2590 uw_Basis_time uw_Basis_unsqlTime(uw_context ctx, uw_Basis_string s) {
adamc@939	2591 char dot = strchr(s, '.'), end = strchr(s, 0);
adamc@939	2592 struct tm stm = {};
adamc@939	2593
adamc@939	2594 if (dot) {
adamc@939	2595 *dot = 0;
adamc@939	2596 if (strptime(s, TIME_FMT_PG, &stm)) {
adamc@939	2597 *dot = '.';
adamc@939	2598 return mktime(&stm);
adamc@939	2599 }
adamc@939	2600 else {
adamc@939	2601 *dot = '.';
adamc@939	2602 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2603 }
adamc@939	2604 }
adamc@939	2605 else {
adamc@939	2606 if (strptime(s, TIME_FMT_PG, &stm) == end) {
adamc@939	2607 return mktime(&stm);
adamc@939	2608 } else if (strptime(s, TIME_FMT, &stm) == end) {
adamc@939	2609 return mktime(&stm);
adamc@939	2610 } else
adamc@939	2611 uw_error(ctx, FATAL, "Can't parse time: %s", s);
adamc@939	2612 }
adamc@939	2613 }
adamc@939	2614
adamc@742	2615 uw_Basis_blob uw_Basis_stringToBlob_error(uw_context ctx, uw_Basis_string s, size_t len) {
adamc@742	2616 char *r = ctx->heap.front;
adamc@742	2617 uw_Basis_blob b = {len, r};
adamc@742	2618
adamc@742	2619 uw_check_heap(ctx, len);
adamc@742	2620
adamc@742	2621 while (*s) {
adamc@742	2622 if (s[0] == '\\') {
adamc@742	2623 if (s[1] == '\\') {
adamc@742	2624 *r++ = '\\';
adamc@742	2625 s += 2;
adamc@742	2626 } else if (isdigit(s[1]) && isdigit(s[2]) && isdigit(s[3])) {
adamc@742	2627 r++ = (s[1] - '0') 8 * 8 + ((s[2] - '0') * 8) + (s[3] - '0');
adamc@742	2628 s += 4;
adamc@742	2629 }
adamc@742	2630 else {
adamc@742	2631 *r++ = '\\';
adamc@742	2632 ++s;
adamc@742	2633 }
adamc@742	2634 } else {
adamc@742	2635 *r++ = s[0];
adamc@742	2636 ++s;
adamc@742	2637 }
adamc@742	2638 }
adamc@742	2639
adamc@742	2640 b.size = r - ctx->heap.front;
adamc@742	2641 ctx->heap.front = r;
adamc@742	2642 return b;
adamc@742	2643 }
adamc@742	2644
adamc@1052	2645 #define THE_PAST "expires=Mon, 01-01-1970 00:00:00 GMT"
adamc@1052	2646
adamc@463	2647 uw_Basis_string uw_Basis_get_cookie(uw_context ctx, uw_Basis_string c) {
adamc@463	2648 int len = strlen(c);
adamc@854	2649 char *p = ctx->outHeaders.start;
adamc@474	2650
adamc@474	2651 while (p = strstr(p, "\nSet-Cookie: ")) {
adamc@474	2652 char *p2;
adamc@474	2653 p += 13;
adamc@474	2654 p2 = strchr(p, '=');
adamc@474	2655
adamc@474	2656 if (p2) {
adamc@474	2657 size_t sz = strcspn(p2+1, ";\r\n");
adamc@474	2658
adamc@474	2659 if (!strncasecmp(p, c, p2 - p)) {
adamc@1052	2660 if (sz == 0 && strstr(p2+2, THE_PAST))
adamc@1052	2661 return NULL;
adamc@1052	2662 else {
adamc@1052	2663 char *ret = uw_malloc(ctx, sz + 1);
adamc@1052	2664 memcpy(ret, p2+1, sz);
adamc@1052	2665 ret[sz] = 0;
adamc@1052	2666 return ret;
adamc@1052	2667 }
adamc@474	2668 }
adamc@474	2669 }
adamc@474	2670 }
adamc@463	2671
adamc@854	2672 if (p = uw_Basis_requestHeader(ctx, "Cookie")) {
adamc@1051	2673 char *p2;
adamc@1051	2674
adamc@854	2675 while (1) {
adamc@1051	2676 if (!strncmp(p, c, len) && p[len] == '=') {
adamc@1051	2677 if (p2 = strchr(p, ';')) {
adamc@1051	2678 size_t n = p2 - (p + len);
adamc@1051	2679 char *r = uw_malloc(ctx, n);
adamc@1051	2680 memcpy(r, p + 1 + len, n-1);
adamc@1051	2681 r[n-1] = 0;
adamc@1051	2682 return r;
adamc@1051	2683 } else
adamc@1051	2684 return p + 1 + len;
adamc@1051	2685 } else if (p = strchr(p, ';'))
adamc@854	2686 p += 2;
adamc@463	2687 else
adamc@463	2688 return NULL;
adamc@463	2689 }
adamc@463	2690 }
adamc@792	2691
adamc@792	2692 return NULL;
adamc@457	2693 }
adamc@462	2694
adamc@1050	2695 uw_unit uw_Basis_set_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c, uw_Basis_string v, uw_Basis_time *expires, uw_Basis_bool secure) {
adamc@462	2696 uw_write_header(ctx, "Set-Cookie: ");
adamc@462	2697 uw_write_header(ctx, c);
adamc@462	2698 uw_write_header(ctx, "=");
adamc@462	2699 uw_write_header(ctx, v);
adamc@466	2700 uw_write_header(ctx, "; path=");
adamc@466	2701 uw_write_header(ctx, prefix);
adamc@1050	2702 if (expires) {
adamc@1050	2703 char formatted[30];
adamc@1050	2704 struct tm tm;
adamc@1050	2705
adamc@1050	2706 gmtime_r(expires, &tm);
adamc@1050	2707
adamc@1050	2708 strftime(formatted, sizeof formatted, "%a, %d-%b-%Y %T GMT", &tm);
adamc@1050	2709
adamc@1050	2710 uw_write_header(ctx, "; expires=");
adamc@1050	2711 uw_write_header(ctx, formatted);
adamc@1050	2712 }
adamc@1050	2713 if (secure)
adamc@1050	2714 uw_write_header(ctx, "; secure");
adamc@462	2715 uw_write_header(ctx, "\r\n");
adamc@462	2716
adamc@462	2717 return uw_unit_v;
adamc@462	2718 }
adamc@667	2719
adamc@1050	2720 uw_unit uw_Basis_clear_cookie(uw_context ctx, uw_Basis_string prefix, uw_Basis_string c) {
adamc@1050	2721 uw_write_header(ctx, "Set-Cookie: ");
adamc@1050	2722 uw_write_header(ctx, c);
adamc@1050	2723 uw_write_header(ctx, "=; path=");
adamc@1050	2724 uw_write_header(ctx, prefix);
adamc@1052	2725 uw_write_header(ctx, "; " THE_PAST "\r\n");
adamc@1050	2726
adamc@1050	2727 return uw_unit_v;
adamc@1050	2728 }
adamc@1050	2729
adamc@682	2730 static delta *allocate_delta(uw_context ctx, unsigned client) {
adamc@682	2731 unsigned i;
adamc@682	2732 delta *d;
adamc@671	2733
adamc@682	2734 for (i = 0; i < ctx->used_deltas; ++i)
adamc@682	2735 if (ctx->deltas[i].client == client)
adamc@682	2736 return &ctx->deltas[i];
adamc@671	2737
adamc@682	2738 if (ctx->used_deltas >= ctx->n_deltas) {
adamc@682	2739 ctx->deltas = realloc(ctx->deltas, sizeof(delta) * ++ctx->n_deltas);
adamc@682	2740 buf_init(&ctx->deltas[ctx->n_deltas-1].msgs, 0);
adamc@682	2741 }
adamc@671	2742
adamc@682	2743 d = &ctx->deltas[ctx->used_deltas++];
adamc@682	2744 d->client = client;
adamc@682	2745 buf_reset(&d->msgs);
adamc@682	2746 return d;
adamc@671	2747 }
adamc@671	2748
adamc@668	2749 uw_Basis_channel uw_Basis_new_channel(uw_context ctx, uw_unit u) {
adamc@682	2750 if (ctx->client == NULL)
adamc@682	2751 uw_error(ctx, FATAL, "Attempt to create channel on request not associated with a persistent connection");
adamc@671	2752
adamc@682	2753 return new_channel(ctx->client);
adamc@668	2754 }
adamc@668	2755
adamc@668	2756 uw_unit uw_Basis_send(uw_context ctx, uw_Basis_channel chn, uw_Basis_string msg) {
adamc@682	2757 delta *d = allocate_delta(ctx, chn.cli);
adamc@682	2758 size_t len;
adamc@682	2759 int preLen;
adamc@682	2760 char pre[INTS_MAX + 2];
adamc@668	2761
adamc@682	2762 len = strlen(msg);
adamc@682	2763
adamc@682	2764 sprintf(pre, "%u\n%n", chn.chn, &preLen);
adamc@682	2765
adamc@682	2766 buf_append(&d->msgs, pre, preLen);
adamc@682	2767 buf_append(&d->msgs, msg, len);
adamc@682	2768 buf_append(&d->msgs, "\n", 1);
adamc@671	2769
adamc@671	2770 return uw_unit_v;
adamc@668	2771 }
adamc@671	2772
adamc@671	2773 void uw_commit(uw_context ctx) {
adamc@1104	2774 int i;
adamc@1104	2775
adamc@1104	2776 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2777 if (ctx->transactionals[i].rollback != NULL)
adamc@1083	2778 if (ctx->transactionals[i].commit)
adamc@1083	2779 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2780
adamc@1104	2781 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2782 if (ctx->transactionals[i].rollback == NULL)
adamc@1083	2783 if (ctx->transactionals[i].commit)
adamc@1083	2784 ctx->transactionals[i].commit(ctx->transactionals[i].data);
adamc@771	2785
adamc@1094	2786 if (ctx->app->db_commit(ctx))
adamc@671	2787 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@682	2788
adamc@682	2789 for (i = 0; i < ctx->used_deltas; ++i) {
adamc@682	2790 delta *d = &ctx->deltas[i];
adamc@682	2791 client *c = find_client(d->client);
adamc@682	2792
adamc@682	2793 assert (c != NULL && c->mode == USED);
adamc@682	2794
adamc@685	2795 client_send(c, &d->msgs);
adamc@682	2796 }
adamc@682	2797
adamc@682	2798 if (ctx->client)
adamc@685	2799 release_client(ctx->client);
adamc@771	2800
adamc@1104	2801 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1083	2802 if (ctx->transactionals[i].free)
adamc@1083	2803 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@916	2804
adamc@916	2805 // Splice script data into appropriate part of page
adamc@1065	2806 if (ctx->returning_indirectly \|\| ctx->script_header[0] == 0) {
adamc@995	2807 char *start = strstr(ctx->page.start, "<sc>");
adamc@995	2808 if (start) {
adamc@995	2809 memmove(start, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 4);
adamc@995	2810 ctx->page.front -= 4;
adamc@995	2811 }
adamc@995	2812 } else if (buf_used(&ctx->script) == 0) {
adamc@916	2813 size_t len = strlen(ctx->script_header);
adamc@916	2814 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2815 if (start) {
adamc@916	2816 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + len);
adamc@917	2817 start = strstr(ctx->page.start, "<sc>");
adamc@916	2818 memmove(start + len, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2819 ctx->page.front += len - 4;
adamc@916	2820 memcpy(start, ctx->script_header, len);
adamc@916	2821 }
adamc@916	2822 } else {
adamc@916	2823 size_t lenH = strlen(ctx->script_header), len = buf_used(&ctx->script);
adamc@916	2824 size_t lenP = lenH + 40 + len;
adamc@916	2825 char *start = strstr(ctx->page.start, "<sc>");
adamc@916	2826 if (start) {
adamc@916	2827 buf_check(&ctx->page, buf_used(&ctx->page) - 4 + lenP);
adamc@917	2828 start = strstr(ctx->page.start, "<sc>");
adamc@916	2829 memmove(start + lenP, start + 4, buf_used(&ctx->page) - (start - ctx->page.start) - 3);
adamc@916	2830 ctx->page.front += lenP - 4;
adamc@916	2831 memcpy(start, ctx->script_header, lenH);
adamc@916	2832 memcpy(start + lenH, "<script type=\"text/javascript\">", 31);
adamc@916	2833 memcpy(start + lenH + 31, ctx->script.start, len);
adamc@916	2834 memcpy(start + lenH + 31 + len, "</script>", 9);
adamc@916	2835 }
adamc@916	2836 }
adamc@671	2837 }
adamc@671	2838
adamc@671	2839 int uw_rollback(uw_context ctx) {
adamc@1104	2840 int i;
adamc@885	2841 cleanup *cl;
adamc@771	2842
adamc@682	2843 if (ctx->client)
adamc@685	2844 release_client(ctx->client);
adamc@671	2845
adamc@885	2846 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@885	2847 cl->func(cl->arg);
adamc@885	2848
adamc@885	2849 ctx->cleanup_front = ctx->cleanup;
adamc@885	2850
adamc@1104	2851 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@771	2852 if (ctx->transactionals[i].rollback != NULL)
adamc@771	2853 ctx->transactionals[i].rollback(ctx->transactionals[i].data);
adamc@771	2854
adamc@1104	2855 for (i = ctx->used_transactionals-1; i >= 0; --i)
adamc@1084	2856 if (ctx->transactionals[i].free)
adamc@1084	2857 ctx->transactionals[i].free(ctx->transactionals[i].data);
adamc@771	2858
adamc@1094	2859 return ctx->app->db_rollback(ctx);
adamc@671	2860 }
adamc@683	2861
adamc@771	2862 void uw_register_transactional(uw_context ctx, void *data, uw_callback commit, uw_callback rollback,
adamc@771	2863 uw_callback free) {
adamc@771	2864 if (ctx->used_transactionals >= ctx->n_transactionals) {
adamc@1084	2865 ctx->transactionals = realloc(ctx->transactionals, sizeof(transactional) * (ctx->used_transactionals+1));
adamc@771	2866 ++ctx->n_transactionals;
adamc@771	2867 }
adamc@771	2868
adamc@771	2869 ctx->transactionals[ctx->used_transactionals].data = data;
adamc@771	2870 ctx->transactionals[ctx->used_transactionals].commit = commit;
adamc@771	2871 ctx->transactionals[ctx->used_transactionals].rollback = rollback;
adamc@771	2872 ctx->transactionals[ctx->used_transactionals++].free = free;
adamc@771	2873 }
adamc@771	2874
adamc@683	2875
adamc@683	2876 // "Garbage collection"
adamc@683	2877
adamc@683	2878 static failure_kind uw_expunge(uw_context ctx, uw_Basis_client cli) {
adamc@683	2879 int r = setjmp(ctx->jmp_buf);
adamc@683	2880
adamc@684	2881 if (r == 0) {
adamc@1094	2882 if (ctx->app->db_begin(ctx))
adamc@684	2883 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	2884 ctx->app->expunger(ctx, cli);
adamc@1094	2885 if (ctx->app->db_commit(ctx))
adamc@684	2886 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@684	2887 }
adamc@683	2888
adamc@683	2889 return r;
adamc@683	2890 }
adamc@683	2891
adamc@683	2892 void uw_prune_clients(uw_context ctx) {
adamc@683	2893 client c, next, *prev = NULL;
adamc@683	2894 time_t cutoff;
adamc@683	2895
adamc@1094	2896 cutoff = time(NULL) - ctx->app->timeout;
adamc@683	2897
adamc@683	2898 pthread_mutex_lock(&clients_mutex);
adamc@683	2899
adamc@683	2900 for (c = clients_used; c; c = next) {
adamc@683	2901 next = c->next;
adamc@683	2902 pthread_mutex_lock(&c->lock);
adamc@685	2903 if (c->last_contact < cutoff && c->refcount == 0) {
adamc@683	2904 failure_kind fk = UNLIMITED_RETRY;
adamc@683	2905 if (prev)
adamc@683	2906 prev->next = next;
adamc@683	2907 else
adamc@683	2908 clients_used = next;
adamc@684	2909 uw_reset(ctx);
adamc@683	2910 while (fk == UNLIMITED_RETRY) {
adamc@683	2911 fk = uw_expunge(ctx, c->id);
adamc@684	2912 if (fk == UNLIMITED_RETRY) {
adamc@1094	2913 ctx->app->db_rollback(ctx);
adamc@684	2914 printf("Unlimited retry during expunge: %s\n", uw_error_message(ctx));
adamc@683	2915 }
adamc@683	2916 }
adamc@684	2917 if (fk == SUCCESS)
adamc@684	2918 free_client(c);
adamc@684	2919 else {
adamc@1094	2920 ctx->app->db_rollback(ctx);
adamc@856	2921 fprintf(stderr, "Expunge blocked by error: %s\n", uw_error_message(ctx));
adamc@684	2922 }
adamc@683	2923 }
adamc@683	2924 else
adamc@683	2925 prev = c;
adamc@683	2926 pthread_mutex_unlock(&c->lock);
adamc@683	2927 }
adamc@683	2928
adamc@683	2929 pthread_mutex_unlock(&clients_mutex);
adamc@683	2930 }
adamc@687	2931
adamc@687	2932 failure_kind uw_initialize(uw_context ctx) {
adamc@687	2933 int r = setjmp(ctx->jmp_buf);
adamc@687	2934
adamc@687	2935 if (r == 0) {
adamc@1094	2936 if (ctx->app->db_begin(ctx))
adamc@687	2937 uw_error(ctx, FATAL, "Error running SQL BEGIN");
adamc@1094	2938 ctx->app->initializer(ctx);
adamc@1094	2939 if (ctx->app->db_commit(ctx))
adamc@687	2940 uw_error(ctx, FATAL, "Error running SQL COMMIT");
adamc@687	2941 }
adamc@687	2942
adamc@687	2943 return r;
adamc@687	2944 }
adamc@717	2945
adamc@1065	2946 static int url_bad(uw_Basis_string s) {
adamc@1065	2947 for (; *s; ++s)
adamc@1065	2948 if (!isgraph(*s))
adamc@1065	2949 return 1;
adamc@1065	2950
adamc@1065	2951 return 0;
adamc@1065	2952 }
adamc@1065	2953
adamc@717	2954 uw_Basis_string uw_Basis_bless(uw_context ctx, uw_Basis_string s) {
adamc@1065	2955 if (url_bad(s))
adamc@1065	2956 uw_error(ctx, FATAL, "Invalid URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@1094	2957 if (ctx->app->check_url(s))
adamc@770	2958 return s;
adamc@770	2959 else
adamc@770	2960 uw_error(ctx, FATAL, "Disallowed URL %s", uw_Basis_htmlifyString(ctx, s));
adamc@717	2961 }
adamc@734	2962
adamc@770	2963 uw_Basis_string uw_Basis_checkUrl(uw_context ctx, uw_Basis_string s) {
adamc@1065	2964 if (url_bad(s))
adamc@1065	2965 return NULL;
adamc@1094	2966 if (ctx->app->check_url(s))
adamc@770	2967 return s;
adamc@770	2968 else
adamc@770	2969 return NULL;
adamc@770	2970 }
adamc@770	2971
adamc@770	2972 int mime_format(const char *s) {
adamc@770	2973 for (; *s; ++s)
adamc@770	2974 if (!isalnum(s) && s != '/' && s != '-' && s != '.')
adamc@770	2975 return 0;
adamc@770	2976
adamc@770	2977 return 1;
adamc@770	2978 }
adamc@770	2979
adamc@741	2980 uw_Basis_string uw_Basis_blessMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2981 if (!mime_format(s))
adamc@770	2982 uw_error(ctx, FATAL, "MIME type \"%s\" contains invalid character", uw_Basis_htmlifyString(ctx, s));
adamc@770	2983
adamc@1094	2984 if (ctx->app->check_mime(s))
adamc@770	2985 return s;
adamc@770	2986 else
adamc@770	2987 uw_error(ctx, FATAL, "Disallowed MIME type %s", uw_Basis_htmlifyString(ctx, s));
adamc@770	2988 }
adamc@770	2989
adamc@770	2990 uw_Basis_string uw_Basis_checkMime(uw_context ctx, uw_Basis_string s) {
adamc@770	2991 if (!mime_format(s))
adamc@770	2992 return NULL;
adamc@770	2993
adamc@1094	2994 if (ctx->app->check_mime(s))
adamc@770	2995 return s;
adamc@770	2996 else
adamc@770	2997 return NULL;
adamc@741	2998 }
adamc@741	2999
adamc@734	3000 uw_Basis_string uw_unnull(uw_Basis_string s) {
adamc@734	3001 return s ? s : "";
adamc@734	3002 }
adamc@734	3003
adamc@734	3004 extern int uw_hash_blocksize;
adamc@734	3005
adamc@734	3006 uw_Basis_string uw_Basis_makeSigString(uw_context ctx, uw_Basis_string sig) {
adamc@734	3007 uw_Basis_string r = uw_malloc(ctx, 2 * uw_hash_blocksize + 1);
adamc@734	3008 int i;
adamc@734	3009
adamc@734	3010 for (i = 0; i < uw_hash_blocksize; ++i)
adamc@734	3011 sprintf(&r[2i], "%.02X", ((unsigned char )sig)[i]);
adamc@734	3012
adamc@734	3013 return r;
adamc@734	3014 }
adamc@734	3015
adamc@734	3016 uw_Basis_string uw_Basis_sigString(uw_context ctx, uw_unit u) {
adamc@1094	3017 return ctx->app->cookie_sig(ctx);
adamc@734	3018 }
adamc@737	3019
adamc@737	3020 uw_Basis_string uw_Basis_fileName(uw_context ctx, uw_Basis_file f) {
adamc@737	3021 return f.name;
adamc@737	3022 }
adamc@737	3023
adamc@740	3024 uw_Basis_string uw_Basis_fileMimeType(uw_context ctx, uw_Basis_file f) {
adamc@740	3025 return f.type;
adamc@740	3026 }
adamc@740	3027
adamc@745	3028 uw_Basis_int uw_Basis_blobSize(uw_context ctx, uw_Basis_blob b) {
adamc@745	3029 return b.size;
adamc@745	3030 }
adamc@745	3031
adamc@737	3032 uw_Basis_blob uw_Basis_fileData(uw_context ctx, uw_Basis_file f) {
adamc@737	3033 return f.data;
adamc@737	3034 }
adamc@741	3035
adamc@741	3036 __attribute__((noreturn)) void uw_return_blob(uw_context ctx, uw_Basis_blob b, uw_Basis_string mimeType) {
adamc@741	3037 cleanup *cl;
adamc@741	3038 int len;
adamc@741	3039
adamc@1065	3040 ctx->returning_indirectly = 1;
adamc@741	3041 buf_reset(&ctx->outHeaders);
adamc@741	3042 buf_reset(&ctx->page);
adamc@741	3043
adamc@856	3044 uw_write_header(ctx, on_success);
adamc@856	3045 uw_write_header(ctx, "Content-Type: ");
adamc@741	3046 uw_write_header(ctx, mimeType);
adamc@741	3047 uw_write_header(ctx, "\r\nContent-Length: ");
adamc@741	3048 buf_check(&ctx->outHeaders, INTS_MAX);
adamc@741	3049 sprintf(ctx->outHeaders.front, "%d%n", b.size, &len);
adamc@741	3050 ctx->outHeaders.front += len;
adamc@1066	3051 uw_write_header(ctx, "\r\n");
adamc@741	3052
adamc@741	3053 buf_append(&ctx->page, b.data, b.size);
adamc@741	3054
adamc@741	3055 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@741	3056 cl->func(cl->arg);
adamc@741	3057
adamc@741	3058 ctx->cleanup_front = ctx->cleanup;
adamc@741	3059
adamc@1065	3060 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@1065	3061 }
adamc@1065	3062
adamc@1065	3063 __attribute__((noreturn)) void uw_redirect(uw_context ctx, uw_Basis_string url) {
adamc@1065	3064 cleanup *cl;
adamc@1065	3065 int len;
adamc@1066	3066 char *s;
adamc@1065	3067
adamc@1065	3068 ctx->returning_indirectly = 1;
adamc@1066	3069 buf_reset(&ctx->page);
adamc@1066	3070 buf_check(&ctx->page, buf_used(&ctx->outHeaders)+1);
adamc@1066	3071 memcpy(ctx->page.start, ctx->outHeaders.start, buf_used(&ctx->outHeaders));
adamc@1066	3072 ctx->page.start[buf_used(&ctx->outHeaders)] = 0;
adamc@1065	3073 buf_reset(&ctx->outHeaders);
adamc@1065	3074
adamc@1065	3075 uw_write_header(ctx, on_redirect);
adamc@1066	3076
adamc@1066	3077 s = strchr(ctx->page.start, '\n');
adamc@1066	3078 if (s) {
adamc@1066	3079 char *s2;
adamc@1066	3080 for (++s; s2 = strchr(s, '\n'); s = s2+1) {
adamc@1066	3081 *s2 = 0;
adamc@1066	3082 if (!strncmp(s, "Set-Cookie: ", 12)) {
adamc@1066	3083 uw_write_header(ctx, s);
adamc@1066	3084 uw_write_header(ctx, "\n");
adamc@1066	3085 }
adamc@1066	3086 }
adamc@1066	3087 }
adamc@1066	3088
adamc@1065	3089 uw_write_header(ctx, "Location: ");
adamc@1065	3090 uw_write_header(ctx, url);
adamc@1065	3091 uw_write_header(ctx, "\r\n\r\n");
adamc@1065	3092
adamc@1065	3093 for (cl = ctx->cleanup; cl < ctx->cleanup_front; ++cl)
adamc@1065	3094 cl->func(cl->arg);
adamc@1065	3095
adamc@1065	3096 ctx->cleanup_front = ctx->cleanup;
adamc@1065	3097
adamc@1065	3098 longjmp(ctx->jmp_buf, RETURN_INDIRECTLY);
adamc@741	3099 }
adamc@874	3100
adamc@874	3101 uw_Basis_string uw_Basis_unAs(uw_context ctx, uw_Basis_string s) {
adamc@874	3102 uw_Basis_string r = uw_malloc(ctx, strlen(s) + 1);
adamc@874	3103
adamc@874	3104 for (; *s; ++s) {
adamc@874	3105 if (s[0] == '\'') {
adamc@874	3106 *r++ = '\'';
adamc@874	3107 for (++s; *s; ++s) {
adamc@874	3108 if (s[0] == '\'') {
adamc@874	3109 *r++ = '\'';
adamc@874	3110 break;
adamc@874	3111 } else if (s[0] == '\\') {
adamc@874	3112 if (s[1] == '\\') {
adamc@874	3113 *r++ = '\\';
adamc@874	3114 *r++ = '\\';
adamc@874	3115 ++s;
adamc@874	3116 } else if (s[1] == '\'') {
adamc@874	3117 *r++ = '\\';
adamc@874	3118 *r++ = '\'';
adamc@874	3119 ++s;
adamc@874	3120 } else
adamc@874	3121 *r++ = '\'';
adamc@874	3122 } else
adamc@874	3123 *r++ = s[0];
adamc@874	3124 }
adamc@874	3125 if (*s == 0) break;
adamc@874	3126 } else if (s[0] == 'T' && s[1] == '.')
adamc@874	3127 ++s;
adamc@874	3128 else
adamc@874	3129 *r++ = s[0];
adamc@874	3130 }
adamc@874	3131
adamc@874	3132 return r;
adamc@874	3133 }
adamc@874	3134
adamc@922	3135 uw_Basis_string uw_Basis_mstrcat(uw_context ctx, ...) {
adamc@922	3136 va_list ap;
adamc@922	3137 size_t len = 1;
adamc@922	3138 char s, r, *s2;
adamc@922	3139
adamc@922	3140 va_start(ap, ctx);
adamc@922	3141 for (s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3142 len += strlen(s);
adamc@922	3143 va_end(ap);
adamc@922	3144
adamc@922	3145 r = uw_malloc(ctx, len);
adamc@922	3146 va_start(ap, ctx);
adamc@922	3147 for (s2 = r, s = va_arg(ap, char); s; s = va_arg(ap, char))
adamc@922	3148 while (*s)
adamc@922	3149 s2++ = s++;
adamc@922	3150 va_end(ap);
adamc@922	3151 *s2 = 0;
adamc@922	3152
adamc@922	3153 return r;
adamc@922	3154 }
adamc@1006	3155
adamc@1050	3156 const uw_Basis_time minTime = 0;
adamc@1050	3157
adamc@1006	3158 uw_Basis_time uw_Basis_now(uw_context ctx) {
adamc@1006	3159 return time(NULL);
adamc@1006	3160 }
adamc@1061	3161
adamc@1061	3162 void uw_get_global(uw_context ctx, char name) {
adamc@1061	3163 int i;
adamc@1061	3164
adamc@1061	3165 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3166 if (!strcmp(name, ctx->globals[i].name))
adamc@1061	3167 return ctx->globals[i].data;
adamc@1061	3168
adamc@1061	3169 return NULL;
adamc@1061	3170 }
adamc@1061	3171
adamc@1061	3172 void uw_set_global(uw_context ctx, char name, void data, void (free)(void)) {
adamc@1061	3173 int i;
adamc@1061	3174
adamc@1061	3175 for (i = 0; i < ctx->n_globals; ++i)
adamc@1061	3176 if (!strcmp(name, ctx->globals[i].name)) {
adamc@1089	3177 if (ctx->globals[i].free)
adamc@1061	3178 ctx->globals[i].free(ctx->globals[i].data);
adamc@1061	3179 ctx->globals[i].data = data;
adamc@1061	3180 ctx->globals[i].free = free;
adamc@1061	3181 return;
adamc@1061	3182 }
adamc@1089	3183
adamc@1061	3184 ++ctx->n_globals;
adamc@1061	3185 ctx->globals = realloc(ctx->globals, ctx->n_globals * sizeof(global));
adamc@1061	3186 ctx->globals[ctx->n_globals-1].name = name;
adamc@1061	3187 ctx->globals[ctx->n_globals-1].data = data;
adamc@1061	3188 ctx->globals[ctx->n_globals-1].free = free;
adamc@1061	3189 }
adamc@1061	3190
adamc@1061	3191 uw_Basis_bool uw_Basis_isalnum(uw_context ctx, uw_Basis_char c) {
adamc@1063	3192 return !!isalnum(c);
adamc@1061	3193 }
adamc@1061	3194
adamc@1061	3195 uw_Basis_bool uw_Basis_isalpha(uw_context ctx, uw_Basis_char c) {
adamc@1063	3196 return !!isalpha(c);
adamc@1061	3197 }
adamc@1061	3198
adamc@1061	3199 uw_Basis_bool uw_Basis_isblank(uw_context ctx, uw_Basis_char c) {
adamc@1063	3200 return !!isblank(c);
adamc@1061	3201 }
adamc@1061	3202
adamc@1061	3203 uw_Basis_bool uw_Basis_iscntrl(uw_context ctx, uw_Basis_char c) {
adamc@1063	3204 return !!iscntrl(c);
adamc@1061	3205 }
adamc@1061	3206
adamc@1061	3207 uw_Basis_bool uw_Basis_isdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3208 return !!isdigit(c);
adamc@1061	3209 }
adamc@1061	3210
adamc@1061	3211 uw_Basis_bool uw_Basis_isgraph(uw_context ctx, uw_Basis_char c) {
adamc@1063	3212 return !!isgraph(c);
adamc@1061	3213 }
adamc@1061	3214
adamc@1061	3215 uw_Basis_bool uw_Basis_islower(uw_context ctx, uw_Basis_char c) {
adamc@1063	3216 return !!islower(c);
adamc@1061	3217 }
adamc@1061	3218
adamc@1061	3219 uw_Basis_bool uw_Basis_isprint(uw_context ctx, uw_Basis_char c) {
adamc@1063	3220 return !!isprint(c);
adamc@1061	3221 }
adamc@1061	3222
adamc@1061	3223 uw_Basis_bool uw_Basis_ispunct(uw_context ctx, uw_Basis_char c) {
adamc@1063	3224 return !!ispunct(c);
adamc@1061	3225 }
adamc@1061	3226
adamc@1061	3227 uw_Basis_bool uw_Basis_isspace(uw_context ctx, uw_Basis_char c) {
adamc@1063	3228 return !!isspace(c);
adamc@1061	3229 }
adamc@1063	3230
adamc@1061	3231 uw_Basis_bool uw_Basis_isupper(uw_context ctx, uw_Basis_char c) {
adamc@1063	3232 return !!isupper(c);
adamc@1061	3233 }
adamc@1061	3234
adamc@1061	3235 uw_Basis_bool uw_Basis_isxdigit(uw_context ctx, uw_Basis_char c) {
adamc@1063	3236 return !!isxdigit(c);
adamc@1061	3237 }
adamc@1061	3238
adamc@1061	3239 uw_Basis_char uw_Basis_tolower(uw_context ctx, uw_Basis_char c) {
adamc@1061	3240 return tolower(c);
adamc@1061	3241 }
adamc@1061	3242
adamc@1061	3243 uw_Basis_char uw_Basis_toupper(uw_context ctx, uw_Basis_char c) {
adamc@1061	3244 return toupper(c);
adamc@1061	3245 }
adamc@1066	3246
adamc@1066	3247 uw_Basis_string uw_Basis_currentUrl(uw_context ctx) {
adamc@1066	3248 return ctx->current_url;
adamc@1066	3249 }
adamc@1066	3250
adamc@1066	3251 void uw_set_currentUrl(uw_context ctx, char *s) {
adamc@1066	3252 ctx->current_url = s;
adamc@1066	3253 }

Mercurial > urweb

annotate src/c/urweb.c @ 1105:a5c160636832